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mathematics
february 2021
06

Mathematics Questions and Answers February 06, 2021

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Please break this down for a student and the attachments are able to open for me thanks again!!!!! Problem 2 Use the following to answer parts a) - el: A year ago, when COVID-19 cases first skyrocketed across the U.S., the home-buying market came to a screeching halt as people were advised to stay home to avoid getting sick. At the time, it seemed

Question The article "The Influence of Temperature and Sunshine on the AlphanAcid Contents of Hops"'l' reports the followmg data on yield (y), mean temperature overthe period between date of Coming into hops and date of picking (x1). and mean percentage of sunshine during the same period (x2) for the Fuggle variety of hop: x1 16.7 17.4 18.4 16.8

CHARACTER ENHANCEMENT REFLECTION Instruction: Choose only one option from the list and provide a brief response to the question. (10 points) A. Consider your current location, whether it is a bedroom, living room, kitchen, or study room. Can you name one discrete and one continuous random variable that are related to the objects you can see? How

Probability #8-1 A and B The length of human pregnancies is approximately normal with mean u = 266 days and standard deviation o = 16 days. Complete parts (a) through (f) (a) What is the probability that a randomly selected pregnancy lasts less than 258 days? The probability that a randomly selected pregnancy lasts less than 258 days is

Help please please math math x Online Assignments" M LACCD Acceptance Letter - X MyLab and Mastering - C a mathxl.com/Student/PlayerTest.aspx?testld=228892766¢erwin=yes Math 230 Spring 21 Test: RealTest (Ch3) Sp 21 4 of 20 (0 complete) This Question: 1 pt Determine which, if any, of the three statements are equivalent. a) The shoes are on

Manual Transmission Automobiles In a recent year, 6% of cars sold had a manual transmission. A random sample of college students who OO owned cars revealed the following: out of 126 cars, 23 had manual transmissions. Estimate the proportion of college students who drive cars with manual transmissions with 99% confidence. Round intermediate and

Questions: Determine the number ufways that a prime minister, secretary. treasurer, and publicity minister euuld be chosen from an art club [If |2 members. a. #195 e. I I Slit) b. 43 d. It] Be \fThe letters of the word CHEMISTRY are put in a hat and three letters are drawn. one at a time. without replacement. Determine the prolnalrnilitjl.r that

6) Marks (1%) It is known that the length of a certain steel rod is normally distributed with a mean of 100 cm and a standard deviation of 0.45 cm. Suppose the manufacturer wants to accept 99% of all rods manufactured. Determine the length of rods that make up the middle 99% of all steel rods manufactured. 7) Marks (1%) Find the value of zo.33

Take that a = 260 mm and 6 = 190 mm . Part A Determine the moment of inertia of the cross-sectional area of the channel with respect to the y axis. (Figure 1) Express your answer to three significant figures and include the appropriate units. 6 0 0 E ? Ly Value Units Submit Request Answer Provide Feedback Figure 50 mm 50 mm a 50 mm

My question is how to answer it? because I don't really know how to answer this, that topic is APPLICATIONS OF NORMAL CURVE can you help me with how to answer that? Question 1 (2 points) w Saved The average salary for newly graduated accounting people is 18,000 pesos per month. If the salaries are assumed to be normally distributed and the

answer all please 23 - Section 6.2 Inference for a Mean Question 5 of21 1' 1 View Policies Current Attempt in Progress impact of Sample Size on Accuracy Compute the standard error for sample means from a population with mean ,u = 80 and standard deviation (5 = 35 for sample sizes ofn = 45,71 = 170, and n = 1000. Round your answers to two decimal

Firsttime patients at North Shore Family Practice are required to ll out a questionnaire that gives the doctor an overall idea of each patients health. The rst question is: \"In general. what is the quality of your health?" The patient chooses Excellent, Good. Fair, 0r Poor. Over the past month, the responses to this question from rsttime patients

5.(30 points total, 10 points each) Below is a relatively recent article from The Journal of the American Medical Association . Read the abstract and review the tables below before answering the questions that follow which ask you to use the information in the paper to carry out the steps of various hypothesis tests. a) (10 points) Perform the

Supposing you have 3 different doses of medications: Img, 3mg, & 5mg You need to combine 2 of the 3 types medications to test all of the different strength combinations. Create a table and... a) List all of the combinations possible (assume that you put back the drug after each pick so you could possibly pick it again). b) Calculate the mean for

Many states mandate tests that have to be passed in order for the students to graduate with a high school diploma. A local school superintendent believes that after-school tutoring will improve the scores of students in his district on the state's graduation test. As a trial run, a tutor agrees to work with 15 students for a month. The

Change "Administrative & Advertising Cost" value to $500,000. Repeatedly press function key F9 to generate new random numbers. What happens to the Profit Distribution? Specifically explain the reason for the change.Change the "Administrative & Advertising Cost" value back to $1,000,000. Change the Lower Bound value of the Parts Cost to $50. Change

So in my scenario I am performing a 1 sample z test, z = +1.23 means the null is accepted since it's below 1.64 but the significance in my test of normality is .000 which is significant (p <0.05). Does that mean my test of normality is not normal and thus the null is retained? Sorry, I'm learning. Does "z = +1.23, p <0.05, one-tailed" make sense,

Hello can someone help me answer the question below the topic is about statistics and probability. 2. A psychologist finds that the intelligence quotients of a group patients are normally distributed, with a mean of 102 and a standard deviation of 16. Find the percent of the patients with IQs a. above 114 b. between 90 and 118

Use the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway is 5? miles per hour. with a standard deviation of 4 miles per hour. Estimate the percent at vehicles whose speeds are between 55 miles per hour and re miles per hour. {Assume the data set has a bellshaped distribution} Approximately Dill: of vehicles travel

StatCrunch Assignment 1A Copy and paste the link: https://www.statcrunch.com/collectors/statcrunchu You will select a sample of 100 students from this population and analyze the data from the sample to draw conclusions about the entire population. We want our sample to be unbiased, so we will start by selecting a random sample of size 100.

Go to the class data spreadsheet here (I trimmed it down to about 100 lines): https://docs.google.com/spreadsheets/d/1D36O0ERsbTA8-mN4a3IKu4iyOOLBH0x2uML07idoQyU/edit?usp=sharing Steps Pick one of the following variables: age, weight, or height. Calculate the population mean (that's everybody on the table) of that variable. Now select a random

Assume you build a Candy castle for which you buy a bag of gummy bears, a block of chocolate and a bag of nuts. The weight of the three ingredients is a random variable (X 1 , X 2 and X 3 ) with mean weights 1 = 200 gram, 2 = 400 gram and 3 = 150 gram. The bags and blocks are not measured top perfection so the standard deviation of the three is 1

I'm looking for help understanding the best way to describe random sampling. My initial answer was "E" but that was incorrect. My second answer was "B". Any guidance regarding random sampling is appreciated as I thought it involves a big population, with a specific sample relative to the big population (if that makes any sense). X 10. Which of the

1. [1.74/5 Points] DETAILS ASWSBE14 8.E.005. DATAfile: Houston You may need to use the appropriate appendix table or technology to answer this question. Data were collected on the amount spent by 64 customers for lunch at a major Houston restaurant. These data are contained in the file Houston. Bas deviation is known with o = $7. 20.50 14.63 23.77

The control department of a light bulb manufacturer randomly picks 4400 light bulbs from the production lot every week. The records show that, when there is no malfunction, the defect rate in the manufacturing process (due to imperfections in the material used) is 1%. When 1.5% or more of the light bulbs in the sample of 4400 are defective, the

Find the area of the shaded region under the standard normal distribution to the left of the given z-score. Round your answer to four decimal places. a. P(z <2.08)=? b. P(z>1.74)=? c.P(0.72

matte a CUHIIUCHCC llllCIVill 10! .' 8.32 Find the value of r for the (distribution for each of the following. 8. Area in the right tail = .05 and (if: 12 b. Area in the left tail = .025 and n = 66 c. Area in the left tail = .001 and df = 49 (1. Area in the right tail = .005 and n = 24 8.33 a. Find the value oft for the 1 distribution with a

please help me to solve these questions. please don't make mistakes Question 1 The following data gives the lengths of time (in weeks) taken to attend the first interview by 13 computer science majors who graduated in 2013. 10339121421231573904112421615 a. Compute the mean, median and mode for the time taken. [5 marks] b. Which is the more

For #1-5, fill in each blank with the letter corresponding to the correct Chi-Square Test. a. Goodness of Fit b. Homogeneity C. Independence 1. Are the colors of Fruit Loops uniformly distributed? N Is there a relationship between whether a football team plays at home and whether it wins or loses? 3. Is there an association between a college

Subject: Engineering Data Analysis Please solve all of the following questions. Thank you 1. Write your final answer in fraction(simplest) form or round it off into five significant places. A lottery box contains lottery tickets numbered 0 to 100. If a lottery ticket is drawn at random, what is the probability that the number drawn a) is a

see attached questions below:- \f\f\f\f\f\fHappiness and religious attendance The table shows MINITAB output for data from the 2008 GSS on happiness and frequency of attending religious services (1 = at most several times a year, 2 = once a month to nearly every week, 3 = every week to several times a week). Rows: religion Columns: happiness Not

An original copy is shipped off a composing firm comprising of typists A, B, and C. On the off chance that it is composed by A, the number of mistakes made is a Poisson irregular variable with mean 2.6; whenever composed by B, at that point the number of blunders is a Poisson arbitrary variable with mean 3; and iftyped by C, at that point it is a

A random sample of m = 17 securities in Economy A produced mean returns of i 1 = 5.6% with 31 = 1.9% while another random sample of 112 = 20 securities in Economy B produced mean returns of i 2 = 4.6% with 32 = 2%. At or = 0.01, can we infer that the returns differ signicantly between the two economies? Assume that the samples are independent and

The proportion p of residents in a community who recycle has traditionally been 70%. A policy maker claims that the proportion is less than 70% now that one of the recycling centers has been relocated. If 162 out of a random sample of 245 residents in the community said they recycle, is there enough evidence to support the policy maker's claim at

Activity 15.7: Correlation in Everyday Life Below we present a number of everyday sayings that suggest relationships. What correlations do they suggest? Are they positive or negative? A fool and his money are soon parted. As the twig is bent, so grows the tree. You can't grow grass on a busy street. Virtue is its own reward. What fails to destroy

Please include critical value and computed test results thank you Teacher Salaries A researcher claims that the mean of the salaries of elementary school teachers is greater than the mean of the salaries of secondary school teachers in a large school district. The mean of the salaries of a random sample of 24 elementary school teachers is $48,300,

please answer this grade 11 15. What is the valance of the sampling distribution of the sample means (3 points) (refer to page 218 formula Mind this) a. 4 C. 3 d. Solution here 16 -20. Please refer to page 214, 243-244 16. If the mean of the sampling distribution of the mean is 7.5, which of the following statements best describe the population

le of Contents > ALEKS > McGraw Hill Campus AcGraw Hill Campus O COUNTING AND PROBABILITY Counting principle involving a specified arrangement A certain train has 7 cars that are being lined up on a track. One of the cars is the engine, and another is the caboose, The engine will be the first car in line. The caboose will be the last car in line.

Below is the average pace per mile in minutes for the female runners of the 2019 Myrtle Beach Marathon (MBM) in the age group of 20-24. Round all values to the tenths. (C1-4) 7.4 7.7 8.1 8.2 8.7 9.0 9.2 9.3 9.3 9.6 9.7 9.8 9.8 9.8 10.4 10.5 10.7 10.8 11.7 11.9 12.4 12.7 13.4 a)Is the data discrete or continuous? (2) b)Is the data ordinal,

The data set contains data with coronavirus hospitalizations per 100,000 people by state, positive coronavirus tests per 100,000 people by state, and population density (number of people living per square mile) by state. 4. Now you add population density by state as a second independent variable to your regression. So you run a regression with

Use the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n = 935 and x= 532 who said "yes." Use a 95% confidence level. Click the icon to view a table of z scores. a) Find the best point estimate of the population

1. Suppose that each of two investments has a 4% chance of a loss of $19 roillion, a 2% chance that a loss of $1 million, and a 94% chance of a prot of $1 million. The}r are independent of each other. (a) What is the VaR for one of the investments when the condence level is 95%? (b) What is the expected shortfall when the condence level is 95%?

Question 5 of 21 (3 points) | Attempt 1 of 1 View question in a popup | 2h 40m Remaining Let A and B be events with P (A) -0.3, P(B) -0.6, and P (A and B) =0.15. (a) Are A and B independent? Explain. (b) Compute P (A or B). (c) Are A and B mutually exclusive? Explain. Part: 0 / 3 Part 1 of 3 (a) Are A and B independent? Explain. The events A and B

This Question: 1 pt Conduct the following test at the a = 0.01 level of significance by determining (a) the null and alternative hypotheses, (b) the test statistic, and (c) the P-value. Assume that the samples were obtained independently using simple random sampling. Test whether p1 # P2- Sample data are x1 = 30, n, = 255, x2 = 36, and n2 = 301.

Help with all answers thanks you! A bottled water distributor wants to estimate the amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company. The water bottling company's specifications state that the standard deviation of the amount of water is equal to 0.02 gallon. A random sample of 50 bottles is

1. Which is an example of discrete data?(two marks) A shoe sizes C distances walked to school by classmates B heights of students in the class D times to run the 100-m dash 2. Which is an example of continuous data?(two marks) A shirt sizes amount of water consumed in a day B class size D number of taxicabs in a fleet3.A hotel questionnaire asks

Hello, Kindly note that I need clear answers (step by step) of all sections, and note that I need it as soon as possible. The following table gives the quantity demanded of ice cream ( Q ic ) in kgs per year in Sardinia (Italy), its price ( P ic ) in $ per kg, consumers' income ( I ) in $, the temperature (T) in Celsius, and the price of

7 According to Ward's Communication, 19% of sports car enthusiasts prefer a red car, 16% silver, 15% black, 14% green, 14% white, and 22% other colors. A sample of 250 cars at a NASCAR raceway revealed 45 red cars, 42 silver cars, 34 black cars, 40 green cars, 39 white cars, and 50 other color cars. We wonder if NASCAR car color preferences are

Brent Perry works as a guide and conservationist for an ornithological tourism company, which is part of an emerging industry catering to birders.He recently surveyed the bird populations in some preserved deciduous woodlands in Northern New Jersey.In particular, he was looking for Baltimore Orioles who surprisingly to some have taken up residence

1. A student wanted to forecast demand data using weighted moving average while ensuring that more emphasis is placed on more recent data. In order to use the weights 7, 3, and 2 to forecast demand for period 9, the weight 7 should be assigned to period 011 08 07 06 010 09For samples of size 14 each, sample means and ranges were calculated for a

Maria, Katrina, Kim, Sergio, and Larry have all been invited to a dinner party. They arrive randomly and each person arrives at a different time. a. In how many ways can they arrive? b. In how many ways can Maria arrive first and Larry last? c. Find the probability that Maria will arrive first and Larry last. a. (Type an integer.) b. (Type an

need details derived QUESTION 3 A random sample of thirty drivers insured with a company and having similar auto insurance policies was selected. Table Q3 lists their driving experience (in years) and monthly auto insurance premium (in RM). The insurance company claimed that the longer the driving experience, the higher is the driver's monthly

3. Cosmic rays Frequency 0. 2 1. 3 2. 4 3. 4 4. 2 5. 3 6. 1 7. 1 A particular highway has an average of 8 potholes per mile. What is the probability of a driver encountering 7 potholes in a given mile? Type as # #28 Check Show answer A library has an average of 6 books checked out per hour What is the probability that 3 books will be checked out

Part One - Data Table Using the data, you collected from the people surveyed in the Module 02 Assessment, fill in the following table: Average Number of Hours Sleep per Night Less than or equal to 6 hours = 5 Greater than 6 hours = 5 Total = 10 Student = 5 Not a Student = 5 Total = 10 Part Two - Probability Questions From the completed table

A back-to-back stem-and-leaf plot compares two data sets by using the same stems for each data set. Leaves for the first data set are on one side while leaves for the second data set are on the other side. The back-to-back stem-and-leaf plot available below shows the salaries (in thousands) of all lawyers at two small law firms. Complete parts (a)

3 Given the following situation, match the error statement with its correct error type. A Statistics teacher has observed that for several years about 13% of students who initially enroll in his Beginning Statistics course drop out before the end of the semester. A salesman introduces him to some computer software that may help students understand

MOVIE minutes opening weekend USE THE DATA ON THE shirtless gross / millions RIGHT FOR THE minutes A 5.7 a certain actor spends B 7.9 shirtless complete C. 1.5 16.1 Parts ( a ) ( b ) & (e ) D 1.9 17. 4 E 14.1 20 .1 A. Determine the correlation coefficient, rounded to two decimals places , between the minutes the actor appears shirtless and films

Researchers are interested in the relationship between number of hours played Pokemon Go in relation to age and level of education. They find that the following is true: Mean number of hours played Pokemon Go in one week was 5.7 hours (Mean of Y=5.7) with standard deviation of 2.6. The mean age of the sample was (Mean of X1 =20) with standard

A scientist went through the forest and measured the weight of moss found at the base of a tree, and the length of a leaf from that tree. The sample size n = 20 trees, the correlation coefficient r = 0.55, and the rest of the data is summarized in the table below. X = weight of moss in grams Y = length of leaf in inches mean 5.00 2.50 standard

Can i get help with this STATS problem 19 0 / 8 points The mean number of hours of sleep that a college student gets per night is 6 hours with a standard deviation of 3 hours. A random sample of forty students is observed. It is of interest to determine the probability that a single student gets less than 5 hours of sleep at night. Identify the

An inventor has developed a new, energy-efficient lawn mower engine. He claims that the engine will run continuously for 310 minutes on a single gallon of regular gasoline. From his stock of engines,the inventor selects a random sample of 1800 engines for testing. The engines run for an average of 310.03 minutes, with a standard deviation of 15.86

Use exact values for calculations and round final answers to 3 or 4 decimal places. Covid-19 antibodies typically appear about 2 to 4 weeks alter infection. A researcher took a random sample of 21 Covid-19 patients and, for each of these, determined the number of days after infection that antibodies appeared. The following are the number of days

A consumer's spending is widely believed to be a function of their income. To estimate this relationship, a university professor randomly selected 19 of his students and collected information on their spending (Y, in dollars) and income (X, in dollars) patterns in week 6 of the semester. Assuming a linear relationship between Y and X, the

A random sample of 79 companies from the Forbes 500 list (which actually consists of nearly 800 companies) was selected, and the relationship between sales (in hundreds of thousands of dollars) and profits (in hundreds of thousands of dollars) was investigated by regression. The following simple linear regression model was used Profits = 0 + 1

QUESTION 16 2 points Save Answer Suppose we are conducting a hypothesis test with the following hypotheses: HO: p = 0.7 H1: p > 0.7 Furthermore suppose we get a p-value of 0.07 while using or = 0.05, which of the following is the correct decision? O a. At the 5% level of significance, there is significant evidence to reject H1 and accept Ho- O b.

In 1955, Life Magazine reported that a 25-year-old mother of three worked, on average, an 80 hour week. Recently, many groups have been studying whether or not the women's movement has, in fact, resulted in an increase in the average work week for women (combining employment and at-home work). Suppose a study was done to determine if the mean work

For a continuous random variable X, P(20 X 40) = 0.15 and P(X> 40) = 0.16. Calculate the following probabilities. (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 2 decimal places.)a.P(X For a continuous random variable X P(20 s X's 40) = 0.15 and AX > 40) = 0.16. Calculate the following probabilities.

What is probability Each year, the highest water level OF a certain river Follows the normal distrubation with mean 5 meters and stendint devition of meter. The highest levels of different years are independent. a Consider are particual year? What is the probability that the water level stays bellow 6 meters b) Consider 100 conschive years. What

A researcher is interested in finding a 95% confidence interval for the mean number of times per dag.r that college students text. The study.I included 119 students who averaged 31 .5 texts per day. The standard deviation was 13.2 texts. a. To compute the confidence interval use a distribution. b. With 9596 confidence the population mean number of

1.A median is sometimes a better measure of the location of a data set because: A. it is easy to compute as it is in the middle of a data set. B. if the distribution of the data set is symmetric, median will be automatically known by knowing mean or mode. C. The statement is wrong because median can't be better than mean. D. when a data set

AutoSave . OFF AA ?. CG ... Document29 9 Home Insert Draw Design Layout References Mailings Review View Tell me Share Comments Calibri (BO. 12 Aa v AL AaBbCcDdEe AaBbCcDdEe AaBbCcD AaBbCcDdEE AaBb AaBbCcDdEe Paste BIU X 2 A v A v Normal No Spacing Heading 1 Heading 2 Title Subtitle Styles Dictate Editor Pane 5 Listed below are the lead

Studies have shown that the frequency with which shoppers browse Internet retailers is related to the frequency with which they actually purchase products and/or services online.The following data show respondents age and answer to the question "How many minutes do you browse online retailers per year?" Age (X)Time (Y)

answer with explanation 20.1 Annual aggregate losses S follow a compound distribution with annual frequency / and severity X (the usual assumption of independence of /V and the X's applies). The probability function of / is uniform on the integers from 0 to 4. X has a uniform distribution on the integers from 1 to 5. Annual stop loss insurance on

I am very confused about this question please help me. (a) Show that the Fibonacci numbers satisfy the recurrence relation fn = 5 fn_4 + 3 f,,_5 for n = 5, 6, 7,. . ., together with the initial conditions f0 = 0, f1 = 1, f2 = 1, f3 = 2,. and f4 = 3. (b) Use the previous answer and mathematical induction to show that 195,, is divisible by 5, for n

3. A golf pro wants to investigate the relation between the club-head speed of a golf club (measured in MPH) and the distance (in yards) that the ball will travel. Here are numbers he has gathered Speed Distance 110 257 102 264 103 274 101 266 105 277 100 263 110 258 105 275 a) Determine the linear correlation coefficient (r) between speed and

2. Draw a scatterplot for the following data and then calculate Pearson's r. What does r suggest about the direction and strength of the association between the two variables (Father's Educ and Respondent's Socioeconomic Status?). (15 pts) Respondent Father's Education (x) Respondent's Socioeconomic Index Score (y) A 16 85 B 12 61 C 14 70 D 12 45

Please be clear A rocket Liquid Oxygen (LOX) tank Is made by rotating the shape shown about the x axis. Given r = 3 m and L = 5.5 m determine the centroid of the shape shown. y= P X The area centrold location is X m and Y m. What Is the volume of the LOX tank made by rotating this area about the x axis? The volume of the LOX tank Is m3 Assuming a

Attach the necessary SPSS output table if you used SPSS for the questions. Q1. There is a randomly selected sample of 20-year-old, 6-foot-1-inch males from Minnesota. This sample of 20 males had a mean weight of 180 lb. Based on this sample, are Minnesota males heavier than males in general? The mean weight of all U.S. males (6'1'') is 175 lb.,

Did the hand washing anchor treatment make a difference for the self-reported hand washing count? Compare between-group means and fit a regression as well to answer the same question. Compare your results from the two different approaches and interpret the overall results in substantive terms. You must discuss considerations related to uncertainty

Find the area of the shaded region. The graph to the right depicts IQ scores ofadults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. 88 A symmetric bell-shaped curve is plotted over a horizontal scale. A vertical line runs from the scale to the curve at labeled coordinate 88, which is to the left of

i just need the answers thank you A golf ball is selected at random from a golf bag. If the golf bag contains 5 black balls, 3 green balls, and 14 brown balls, find the probability of the following event. The golf ball is black or green. . . . The probability that the golf ball is black or green is. (Type an integer or a decimal rounded to three

The Terre Haute Association of Realtors conducts a study to examine the association between the size of a home (in square feet) and the price the home sells for (in dollars).a regression model is then created to predict the price based on the size of the home and is given by the following equation: P r i ce = -43511 +86.3 (size) a) Interpret the

Does the shape or color of a pain pill influence its effectiveness?Although logically it shouldn't, whether we believe a drug will work does have a powerful effect on our perceptions (e.g., placebo effect).In this experiment, 4 groups of adult patients were given the same amount of Advil after dental surgery for pain relief, but the color and

8. The portfolio you are analyzing has a few high magnitude loss events in the past. Which of the following methods is not appropriate to estimate the VaR for this portfolio? A) Historical simulation B) Parametric GARCH, in which the shock is assumed to be standard normal C) Filtered historical simulation D) None of the above 9. A bank's 1% VaR

What's the best way to solve this ? Chelsea and Karissa began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Chelsea took a test in Art History and earned a 80.9, and Karissa took a test in Science and earned a 60.9. Use the fact that all the students' test grades in the

a brief explanation or answer only is fine thank you. Construct the indicated confidence interval for the population mean u using the t-distribution. Assume the population is normally distributed. c= 0.90, x = 14.4, s=3.0, n=5 (Round to one decimal place as needed.)Construct the indicated confidence interval for the population mean u using the

chrome:/ewtab X 5 MATH 533 Course Proje X Course Hero Log In T juice Plus Turn money into m.. 4 PODCast /IG Live G.. [ MEP Family Finance. os IBM's Simon Perso.. Citrix Receiver Interval Internation. Reading list - Week 6: Quiz Question 6 of 20

Your answer is partially correct. Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise. A 1992 article in the Journal of the American Medical Association ("A Critical Appraisal of 98.6 Degrees F. the Upper Limit of the Normal Body temperature, and Other Legacies of Carl Reinhold

Multiple-line waiting time at check-out cashiers at Albertson has standard deviation on 2.1 minutes. After converting to single waiting-line, a sample of 31 customers yields the standard deviation of 1.8 minutes. Test the claim, at 5% significant level, that the standard deviation of the waiting time in single-line method is less than the standard

Survey 30 people to find out if they are left-handed or right-handed and use the following chart to create a contingency table with the information. If you randomly choose a female from the people you surveyed, what is the probability that she is left-handed? Gender Left-handed Right-handed Total Male 6 (A) 17 (B) 23 Female 3 (C) 4 (D) 7 Total 9

Need help please in this Homework Homework: Week 1 1 Score: 0 of 1 pt 4 2 of 18 (0 complete) v D Hw Score: 0%, 0 of 18 pts 1 6.4.54 Question Help V a' A golfer's scores in a golf tournament are shown in the table. What was the golfer's manna\" average score per hole? Percentage 0f holes The golfer's average score per hole was '1. (Type an integer

a. Should all bars have the same width, based on the data? Why or why not? b. How should the

Let X Exp() (exponential random variable with parameter > 0) and Y Geom(p) (geometric random variable with parameter p (0, 1)). Show that both X and Y satisfy the "memoryless" property for random variables, that is P(Z > s|Z > t) = P(Z > s t). That is the probability that the random variable will take values greater than s given the information

First Order Approximations and correlation The shear strength. T . ofa soil is given by the expression T 2 C + S tan (D where (' denotes the cohesion, S denotes the effective normal stress, and (D is the friction angle. The quantities (7. S and (D are uncertain with the following rst and second moment properties: .____4- Mean Jur' =

Use R to solve this problem A B C D E F G 1 PatientID Cereal Cholesterol 1 Cornflk 5.61 2 Cornflk 7.42 4 3 Cornflk 6.4 4 Cornflk 5.54 5 Cornflk 4.98 6 Cornflk 4.82 8 7 Cornflk 6.01 9 8 Cornflk 5.34 10 9 Cornflk 4.82 11 10 Cornflk 5.56 12 11 Cornflk 6.35 13 12 Cornflk 4.89 14 1 OatBran 4.84 15 2 OatBran 6.57 16 3 OatBran 6.85 17 4 OatBran 5.8 18 5

(1 point) A study was conducted to determine whether the final grade of a student in an introductory psychology course is linearly related to his or her performance on the verbal ability test administered before college entrance. The verbal scores and final grades for all 10 students in the class are shown in the table below. Student Verbal Score

How to fix my assignment where it is no plagerism. Project 2: Statistics Assignment Delphine Smith STAT205: Introduction to Applied Statistics-202122 Spring Z0 Dr. Ann Vining January 21, 2022 Project 2: Statistics Assignment People Frequency YES 6 NO 26 A study that I have found is called "Frequency of Children vs Adults Carrying Severe Acute

QUESTION 1 Suppose average pizza delivery times are normally distributed with an unknown population mean and a population standard minutes deviation of six minutes. A random sample of 28 pizza delivery restaurants is taken and has a sample mean delivery time of 36 Identify the following: a. X = b. J = C. n= O a. X = 36 b. O = 28 c. n = 6 O a. X =

MA 203 DL Excel Project 2 Chapter 5 Skills- Probability Distributions/Binomial Cases Gender Genetics Given the following table, Find the mean for the number of girl babies in eight births Find the standard deviation for girls Find the probability of getting exactly one girl in 8 births Find the probability of getting 1 or fewer girls in 8 births

Subject Test Score Job Proficiency Score i X11 X /2 X13 X14 86 110 100 87 88 62 97 99 100 80 3 110 107 103 103 96 . . . . . . . . . - . . . . . 23 104 73 93 80 78 N 94 121 115 104 115 25 91 129 97 83 83 c. Since there is relatively little difference in Ra for the four best subset models, what other criteria would you use to help in the selection

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