Mathematics Questions and Answers January 05, 2021

An article estimates with 90% confidence that the proportion of elementary school teachers who are female is 82%. The article also states the maximum error of their estimate is 3%. Determine the resulting 90% confidence interval for the proportion of elementary school teachers who are female

A store has a sale with 15% off every item. When you enter the store, you receive a coupon that states you receive an additional 4% off any sale price. If you purchase an item that originally sells for $90.00. What will your total discount be in (a) dollar amount and (b) in percent

Beta Company is manufacturing steel wire with an average tensile andstrength of 50 kilos. The laboratory tests 16 pieces and finds that the mean is 47kilos and the standard deviation is 15 kilos. Are the results from sample differentwith the hypothesis that the population mean is 50 kilos using 0.05 significancelevel?

if I want to explore the relationship between the scores students receive on their first quiz and their first exa. I believe that there is a positive correlation between the two scores. What will be the most appropriate null and alternative hypothesis regarding the population correlation? H0: p = 0 and H1: p <0 H0: p = 0 and H1: p>0 H0: p = 0 and

Trainers need to estimate the level of fat in athletes to ensure good health. Initial tests were based on a small sample but now the trainers double the sample size for a follow-up test. The main purpose of the larger sample is to

Suppose for a test, the alternative hypothesis is < 20 and the calculated test statistic zcal = 2.15. The p-value for this test is a) P(z < 2.15) b) P(z > 2.15) c) 2P(z < 2.15)

Provide R code if possible Question: A sample of different pieces of glass from various sources is analyzed. Of interest is how the refractive index (RI) of each piece depends on its chemical composition (8 different elements are measured in each). The data are recorded in the file glass.csv. You may assume that the RI measurements are independent

I need with this Match each of the following to the symbol that represents it. Mean of the sampling distribution of 13 Standard deviation of the sampling distribution of 15 Sample size Mean of the sampling distribution of the sample mean Standard deviation of the sampling distribution of the sample mean. 3- MPH b- #33 =P

Please help me work out the prevalence and incidence of asthma in Neverland in 2020 total resident population: 6,680,600 total cases of asthma in 2020: 1,410cases total cases of asthma in 2019: 1718 cases 30 new cases in 2020 please work it out using per 100,000 person-year

QUESTION 12: You roll a dice 5 times. Let X be the number of sixes you get and introduce Y= 6 X+ 3. Then the standard deviation to Y is given by?

The average on a history exam was 85 out of 100 points, with a standard deviation of 15. Was the distribution of the scores on this exam symmetric? If not, what shape would you expect this distribution to have? Explain your reasoning.

The average on a history exam was 85 out of 100 points, with a standard deviation of 15. Was the distribution of the scores on this exam symmetric? If not, what shape would you expect this distribution to have? Explain your reasoning.

QUESTION 14: Given a random variable X with probability density

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how do you do longhand Find the critical value(s) and rejection region(s) for the indicated t-test, level of significance a, and sample size n. Left-tailed test, a = 0.005, n = 14 Click the icon to view the t-distribution table. The critical value(s) is/are (Round to the nearest thousandth as needed. Use a comma to separate answers as needed.)

Confidence limits are defined as ___________. A. the highest and lowest score in the sample set of scores B. the values that lie outside of the confidence interval C. the values that bind the confidence interval D. the values that lie within the confidence interval

What is E(Y/X)?You must explain how you get the answer in detail.

12 2 0.2 0.1 0.3 0.2 0.1 0.3 12 0.0 0.4 0.4 0.4 0.6

Media , mean, mode Answer the questions below. (a) Each member of the football team was asked to report the year he was born. Which measure gives the most common year of birth? O Mean O Median O Mode (b) In Prof. Smith's class, the 9 students had the following scores on the last midterm: 76, 126, 127, 129, 135, 137, 138, 139, 141. Which measure

please help me with this problem Question 1 10 pts Consider the Standard Normal Distribution with mean 0 and standard deviation 1. Find the P (z > -1.23 ). Draw your curve. Write your answer as a decimal with 4 digits and insert it below

QUESTION 2: A company has hired 10 new data scientists. Three of them will work on an assignment for the Norwegian Institute of Public Health. How many different teams of three can you form?

please help me with this problem please How high must an individual score on the GMAT in order to score in the highest 5%? Write your answer with 3 digits before the decimal and 2 digits after the decimal

could you pls solve these problems Lab X @ Lab X @ Lab x G Oper X Press x W/ Noe x Hom x 9 EX G goos X . He x Cont X P Dot X C mathxl.com/Student/PlayerHomework.aspx?homeworkld=605997287&questionld=4&flushed=false&cld=6633339&back=https://www.mathxl.com/S OH meal 10 Mail - Yamada, Bri... Dream Car GYM Gmail ) YouTube MATH 180 Calculus I (All

You have a box full of 36 ornaments: 9 spherical ornaments, 9 Santa ornaments, 9 Star ornaments and 9 handmade ornaments that always find their way to the back of the tree (C'mon, We all have them). What is the probability of getting 2 Star ornaments, assuming that the first one is NOT replaced? What is the probability of getting 2 Star ornaments,

1 way ANOVA analysis was used to test the effectiveness of 3 kinds of headache medicines (Advil, Tylenol, and Excedrin). The analysis involved 45 people (15 per group), and used an alpha level of 0.01. What are the dfW (degrees of freedom Within)

Find the maximum profit and the number of units that must be produced and sold in order to yield the maximum profit. Assume that revenue, R(x), and cost, C(x), of producing x units are in dollars. R(x) =60x - 0.1x2, C() =4x + 15 In order to yield the maximum profit of $ units must be produced and sold (Simplify your answers. Round to the nearest

A batch of parts contains 80 parts from Batangas supplier of engine and 120 parts from as supplier of engine in Bulacan. If five parts are selected randomly and without replacement, find the probability that (a) they are all from Batangas supplier; (b) three or more parts in the sample are from Batangas; (c) at most two parts in the sample are

Statistics and probability:- \fThe article "Psychiatric and Alcoholic Admissions Do Not Occur Disproportionately Close to Patients' Birthdays" (Psychological Reports. 1092: 944-946) focuses on the existence of any relationship between the date of patient admission for treatment of alcoholism and the patient's birthday. Assuming a 365-day year

In the general population of United States families, parents score u = 13.300 on the Parental Compentance Scale-Revised (PCSR). A family researcher wishes to know if having a chronically ill child has an effect on parenting quality . The researcher studied a sample of 9 families with chronically ill children. The data below represent the PCSR

Help pls #7 y 5 5 O O 7. [-/10 Points] DETAILS SCALCET8 12.5.016. (a) Find parametric equations for the line through (2, 2, 4) that is perpendicular to the plane x - y + 2z = 2. (Use the parameter t.) ( x (t ) , y (t ), z(t) ) = (b) In what points does this line intersect the coordinate planes? xy-plane (x, y, z) = yz-plane (x, y, z) = xz-plane

Answer...... 3 Which of the following statements is a property of the normal curve? a. the shape of the curve decided by the degrees of freedom b. the median is less than the mean c. Pr(u - 1.960

correct answer only needed. Which is true about the zseere? O a. also called reference score 0 b. z:{X-u)/G O {1. Let's you compare the results to the sample. 0 d. all of the above

Math-K300 Spring 2022 Online Kierstyn Cochran 02/20/22 12:30 PM (?) hical e... Homework: Section 4.3 More E Discrete Probability Question 13, 4.3.20 HW Score: 54.35%, 12.5 the Part 1 of 4 of 23 points Distribution O Points: 0 of 1 Save phica ound Find the indicated probabilities using the geometric distribution, the Poisson distribution, or the

EXAMPLE 1: Suppose that X, the number of cars that arrive at a specic intersection during a 20-second time period, is characterized by the following probability density function 6445\" f(x) = x] a) Find the probability that in a specic 20second time period, more that ten cars arrive at the intersection b) Find the probability that only 8 cars

(0) Test H0 : bl 2 b2 = 0 vs. H1 : bj 7 0 for some 3' E {1, 2} at a 5% level of signicance. Report the value of the test statistic, the critical value(s), and the decision. Hint: the Null model is the simple linear regression model. You have 8 8 8 8 2 E 9313, 2 93i3 E yi; E 33mg; i=1 i=1 i=1 i=1 Find SSE for the null model to perform test

Subject ID Education Memory College ID Accept rate% Grad rate% 1 12 112 1 5 96 2 13 117 2 6 95 3 12 96 3 8 97 4 12 114 4 9 94 5 16 111 5 11 96 6 13 85 6 13 94 7 13 89 7 15 85 8 12 94 8 16 93 9 13 113 9 16 84 10 14 105 10 16 92 11 18 112 11 18 87 12 10 84 12 19 96 13 10 90 13 20 90 14 16 89 14 22 89 15 18 117 15 24 85 16 14 83 16 24 78 17 12 106 17

Hi there! I have 8 AP Calc Questions. 9. [-I1 Points] DETAILS LARHSCALCZ 2.4.054. MY NOTES PRACTICE ANOTHER Find the derivative of the function. 9(0) = (sin(99))9 9'09) = Need Help? 10. {-11 Points] DETAILS LARHSCALCZ 2.4.057.MI.SA. MY NOTES PRACTICE ANOTHER This question has several parts that must be completed sequentially. If you skip a part of

Use the advertised prices for used cars of a particular model in the accompanying table to create a linear model for a relationship between a car's age and its price. Complete parts A through G. Show working.(A) Find the equation of the line of regression. Show working.(B) Explain the meaning of the slope of the line. Show working (C) Explain the

Find the relative extrema, if any, of the function f ( x ) = x 2 + 1 2 x

Please explain and give some details. Thank you! Precisely when does V(X+Y) = V(X) + V(Y)

Precisely when does V(XY) V(X) V(Y)

1. Answer true or false to the following statement and give a reason for your answer: If a 95% confidence interval for a population mean, , is from 33.8 to 39.0, the mean of the population must lie somewhere between 33.8 and 39.0. 2. If you obtained one thousand 95% confidence intervals for a population mean, , roughly how many of the intervals

A teacher has determined that test scores for a statistics course are normally distributed with mean 75 and a standard deviation of 5. a) What percentage of students get a test score greater than 82? b) What grade do the top 1% of students have? (Hint: you are looking for X)

Could you help me with this question please? 13. (10 points) (a) (5 points) Directly compute (without using Green's Theorem) Sc F(x, y) . dr, where F(x, y) = (y2, -xy) and C is the unit circle traversed counterclockwise. (b) (5 points) Use Green's Theorem (see the Theorem on the last page) to evaluate the line integral in part (a)

3. The number of days since the appearance of a tumour in an animal, and the size of the tumour, are shown below: Days 14 16 19 21 23 26 28 30 33 Size(cm]) 1.25 1.90 4.75 5.55 7.53 14.5 16.7 20.9 27.1 Construct the best regression that you can find, and use the model to estimate the size of the tumour after 24 days. [25 marks] 4 (a) Test the

We will use the Bayes filter to track the state It E IR of a robot. The prior probability density mction over the robot state at time t = D is 19(3) 2 Are"1 for :1: E [0, so) and 0 otherwise. The motion model is n+1 = on for or > 0. The robot is equipped with a sensor that provides observations according to the obscuration model at = if, where the

a. A researcher is conducting a study to investigate the relationship between students of Bachelor of Business Management from the Faculty of Business and Accountancy who did part time job and Cumulative Grade Points Averages (CGPA). The questionnaires were distributed to randomly select 40% from each ethnic group of the Bachelor of Business

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"pw 64 65 74 76 78 73 79 80 81 84 34 84 85 85 85 86 35 86 87 38 89 89 91 92 94 95 96 96 97 93 Given the mean of 35.1 and a standard deviation is 8.5. Using this information and the Empirical Rule to answer the following questions 68% of the data lies between what 2 temperatures? 95% of the data iies between what 2 temperatures? 99.7% of the data

Ketchup: 0.2; Mustard: 0.6; Both ketchup and mustard: 0.12 Let K be the event that a customer orders ketchup and let M be the event that a customer orders mustard. (a) Are the events K and M mutually exclusive? [1 mark] Enter 1 for Yes, or 0 for No. (b) Are the events K and M independent? [1 mark] (c) What is the probability that a customer orders

For the function below, find a) the critical numbers; b) the open intervals where the function is increasing; and c) the open intervals where it is decreasing. f(x ) = 1x2+10 a) Find the critical number(s). Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The critical number(s) is/are (Type an

The amount of coffee that people drink per day is normally distributed with a mean of 16 ounces and a standard deviation of 4.5 ounces. 6 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N( 16 4.5 b. What is the distribution of ? x - N( c. What is the probability

During the Covid-19 pandemic, working from home has become the norm. Because of this, many households face an increasing monthly electricity bill. Mr. Tan is a research student at the Singapore University of Social Sciences, and his research focus is to examine the impact of Covid-19 on household electricity consumption. He hypothesized that the

3. (18 points) Suppose we have a transaction database, TDBl, with the following transactions: T1 = {(11,022 - - - ,012},T2 = {010,011,020},T3 = {01,021- - - ,020},T4 = {01,a2, - - - #130} (a) (6 points) For TDBl, for a minimum (absolute) support of 1, Le, minsup = 1, how many closed patterns and maximal pattern(s) do we have and what are they?

1. For the following data set, what is the range? 26 59 88 96 154 209 265 294 304 321 42 64 96 121 155 224 267 64 322 a. 296 b. 269 c. 268 d. 214 e. 119 2. For the data set in problem #1, what is the variance? a. 11329.89 b. 10799.77 c. 12311.78 d. 10987.32 e. 20118.45 3. For the data set in problem #1, what is the standard deviation? a. 104.820

Construct the cumulative frequency distribution for the given Age (years) of Best Actress when Cumulative data. award was won Frequency Age (years) of Best Actress when Frequency Less than 30 award was won 20-29 26 Less than 40 30-39 34 Less than 50 40-49 50-59 Less than 60 60-69 Less than 70 70-79 80-89 Less than 80 Less than 90

A real estate agent has19 19properties that she shows. She feels that there is a50% 50%chance of selling any one property during a week. The chance of selling any one property is independent of selling another property. Compute the probability of selling no more than3 3properties in one week. Round your answer to four decimal places.

there were 250 turkeys at a farm in Hicksville NY who weigh an average of 12 pounds with a standard deviation of 8 pounds. if 4 turkeys are chosen are random. Question? what is the probability they have an average weight of greater than 8 pounds and less than 25 pounds?

I just want to know if these are correct if not please provide explanation of correct answer iksheet points. Round all answers to tour Use the following information for problems 1 & 2. A child has 17 blocks in a bucket: 5 red, 6 blue, 4 green, and 2 yellow. 1. The child reaches into the bucket and randomly picks a block. Find the probability that

Please answer for this question Heart rate. An individual with an irregular heartbeat is given a medication to stabilize his coalition. Heart rates (beats per minute) before and after treatment are shown here.\" Determine the means and standard deviations before and after treatment. Did the drug work? Before: 65 85 90 65 55 60 After: 68 70 6? 70

An office set out a box of candy bars for its interns in its break room. Thirty-four of the bars had nuts in them, 26 had fruits in them, and 38 had chocolate chips in them. Ten bars had just nuts and chocolate chips in them, 8 bars had just fruits and chocolate chips in them, 6 had nuts, fruits, and chocolate chips in them, and none of the bars

U Links The Denver Post reported that, on average, a large shopping center had an incident of shoplifting caught by security 1.8 times every five hours. The shopping center is open from 10 A.M. to 9 P.M. (11 hours). Let r be the number of shoplifting incidents caught by security in an 11-hour period during which the center is open. (a) Explain why

When asked whether marriage is becoming obsolete, 775 out of 1966 randomly selected adults who responded to a poll said yes. Refer to the output given. Assuming the conditions for the CLT were met, complete parts (a) and (b) below. 1-PFOPZIFIt (.37260,.41580) p = .3942014242 n = 1966 a. Report a 95% condence interval for the proportion. Use

A. For what values of a will the series M 2k+1 converge absolutely? Justify your answer. B. Find the interval of convergence of the series E k!(x - 1)*. Justify your answer. (I-2)k C. Find the interval of convergence of the series M Justify your answer. K= 3* 12 D. For what values of p will the series 1 M 2 k(In k)P converge? Justify your

A weight loss program claims that program participants have a mean weight loss of at least 10 pounds after 1 month. You work for a medical association and are asked to test this claim. A random sample of 30 program participants and their weight losses (in pounds) after 1 month is listed in the table below. Assume the population standard deviation

IV.(18) The following are scores on exam 1 of a statistics course. 80 84 94 65 72 55 84 99 86 87 For this population answer the following 6 questions. 1. Find U= 2. Find Of = 3. Find the standard deviation = 4. Find the Z-score of 75. 5. How many standard deviations 6. What score represents a Z-score from the mean is the score of -2 for this

QUESTION 1 Compute the sample mean, which is symbolized as , hours of overtime worked by members of the maintenance team during the blizzard. Report only your numerical answer. QUESTION 2 As documentation of computing the sample standard deviation for this sample data, complete the deviations about the mean column that corrsponds to the data,

The table below shows the number of one company's stores located in each of 50 regions. Complete parts (a) through (c) below. 60 22 75 54 563 84 307 126 21 30 198 125 80 31 198 99 115 158 82 48 41 35 157 45 345 135 205 234 21 67 23 86 409 20 38 103 a. Compute the mean, variance, and standard deviation for this population. The population mean is u

Complete the Sentence below. Determine if the following statement is true or false. n _ ax is an example of notatio The notation a, + a2 + a3 + ... + an K = 1 If n 2 0 is an integer, then n! = n(n - 1) . . . 3 . 2 . 1 when n 2 2. 1 3 Choose the correct answer below. The notation a, + a2 +ag + ... + an ak is an example of not K = 1 O A. True O B.

2. Maggie, Meredith, Holly, and Zoe are dividing a piece of land using the lone-divider method. The values of the four pieces of land in the eyes of each player are shown below. a. Who was the divider? b. If playing honestly, what will each player's declaration be? c. Find the final division 3. Three heirs (A, B, C) must fairly divide an estate

Find all solutions of the equation in the interval [0, 2nt). 2 sin 40 cos 0 - 2 cos 40 sin 0 = - 3 Write your answer in radians in terms of It. If there is more than one solution, separate them with commas. 0 = 0,0,... X 5 ?V For a xed location, the number of sunlight hours in a day uctuates throughout the year. Suppose that the number of daily

Find the function value, if possible. (If an answer is undefined, enter UNDEFINED.) 4(x) = . 1 x2 - 9 (a) q(0) (b) q(3) (c) q(y+ 3)Find the function value, if possible. (If an answer is undefined, enter UNDEFINED.) f(x) = Ixl + 4 (a) (9) (b) f(-9) (c) f( x2 )Find the function value, if possible. (If an answer is undefined, enter UNDEFINED.) h(t) =

U ProctorU | Real Pe... 1430.01 SP2022 (32954) > Quizzes > Carmen Homework 4 - Correlation.. Carmen Homework 4 - Correlation and Regression Questions Started: Feb 7 at 10:57am Question 1 Quiz Instructions Question 2 Question 3 Question 4 This quiz covers correlation and regression. Please have your notes available. Go over them before you start

Layout References Mailings Review View Help 1 SUMMARY OUTPUT 2 Regression Statistics 4 Multiple R 0.81297638 5 R Square 0,660930595 6/ Adjusted R Square 0.6539394737 7 Standard Error 10.66478616 8 Observations 1iliili 199 9 10 ANOVA 11 SS MS Significance F 12 Regression 43010.38063 10752 5952 94.5385617 1.785025-44 13 Residual 194 22065.1068

How do i solve this Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A frame ACD is supported by ball-and-socket joints at A and D and by a cable that passes through a ring at Band is attached to hooks G and H. Assume that cable GBH is replaced by a cable GB attached

7. Given the graph of y = N " (x) , the second derivative of N (x) , answer the following questions about the original lnction N(x) : Place 2 arrows on the graph pointing upward. a} On what interval(s} is NU) increasing? b) On what interval{s} is N{x) decreasing? c) On what interval(s) is N (x) concave up? d} On what interval{s} is NU!) concave

Quiz: Ch 9 Quiz: One Sample Confidence Intervals Question 3 of 10 This quiz: 10 point(s) possible This question: 1 point(s) possible Submit quiz Next question A group conducted a poll of 2045 likely voters just prior to an election. The results of the survey indicated that candidate A would receive 49% of the popular vote and candidate B would

Question is that Define a function on the unit square [ 0 , 1 ] [ 0 , 1 ] by f( x , y ) = 1 if x = rational ay if x = irrationalNote that f(x, y) = 2y almost everywhere in [0, 1] , because the set of discontinuities has measure zero: M((Q n [0, 1]) x [0, 1]) = M(Q n [0, 1]) . M([0, 1]) = 0 . (1 - 0) = 0. Therefore, we immediately deduce that f(x,

On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of 114 and a standard deviation of 16. Suppose one individual is randomly chosen. Let X = IQ of an individual. a. What is the distribution of X? X ~ N b. Find the probability that a randomly selected person's IQ is over 78. Round your answer to 4

Question 1 1 pts The following is a graph of a function g(x) , defined on the interval [0 , 4]. g(z) -2 2 3 Choose all the correct statements below. lim g(x) does not exist. O lim g(x) = 2 X2 O lim g(x) does not exist. lim g(xx) - 3 O lim g(x) exists. x-3.5Question 2 1 pts x-a If lim =3 , then what is the value of a ? X - 0 X Your answer should be

( t a n 3 c o t 3 ) / ( t a n 2 + c s c 2 ) = t a n c o t Prove the identity and show your steps

A system has two generators, G1 and GZ, of capacity 80 W and 50 MW respectively. Gland G2 have failure rates of Olfday and 0.012fday respectively, and mean repair times of 8 days and 6 days respectively. Use sequential Monte Carlo simulation to estimate the following. (a) Assuming failures and repairs to be independent, find the mean time to first

Consider the music genre data set described in Sect.1.4 of Applied Predictive Modeling. The objective for these data is to use the predictors to classify music samples into the appropriate music genre. >data = read.csv("https://raw.githubusercontent.com/lainii/Genre-Prediction/master/genresTrain.csv", header=TRUE, sep=",") >dim(data) > str(data)

[1/6 Points] DETAILS PREVIOUS ANSWERS SESSCALCET2 8.4.011. MY NOTES ASK YOUR TEACHER PRACTICE Test the series for convergence or divergence. n = 0 Son! Identify bn- X Evaluate the following limit. + lim bn X X Vo 0! Since lim bn ? 8 0 and bn + 1 ? @ bn for all n, the series is convergent n - If the series is convergent, use the Alternating Series

please help A proponent of a new proposition on a ballot wants to know whether the proposition is likely to pass. The proposition will pass if it gets more than 50% of the votes. Suppose a poll is taken, and 552 out of 1000 randomly selected people support the proposition. Should the proponent use a hypothesis test or a confidence interval to

Step 11.4 - Design 20 Insert SQL statements. Then Insert the 20 records Into the table. Show your work by providing screenshots of executing the INSERT SQL statements in the database. Step 11.5 - Design a SQL statement using CUBE function and Include day, hour, and item. Then execute the SQL statement In the database. Show your work by providing

Question 1: If f(x)=5x-1, g(0)=2, g'(0)=4, and h(x)=f(g(x)), then what is h'(0)? Question 2:

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(Ch13-EOC-Q8) For the boxes, compute the missing numerical values. Go up to 3 decimal places if applicable! Note: for the three blue drop down questions, the answer selections are "yes" or "no". Q8 The following results are from an independent-measures, two-factor study with n = 4 participants in each treatment condition. Factor A: Factor B: BI A1

SOLVE IN R! 1) Using the data file "armspans2022_gender.csv" a) what proportion of the class identified as female? b) Fit the regression equation E(armspan|isfemale)=0+1(isfemale) Interpret the intereept c) Interpret the slope from (b) d) The summary command provides a t-statistic and p-value for the slope. What is this testing in this context?

A certain bacteria culture has an exponential growth y = yo ekt If we start with 1750 bacteria, and in 4 hours has grown to 3500 then, provided unlimited resources, we can grow _ bacteria in 10 hours? Note: Round your answer down to two digits after the decimal point. Ie 8.65783 becomes 8.65 and 0.64532 becomes 0.64. Do not round until the end of

S. [-/3.54 Points] DETAILS BBUNDERSTAT12 5.2.016 MLS. MY NOTES ASK YOUR TEACHER Richard has just been given a 8-question multiple-choice quiz in his history class, Each question twiis tive answers, of which only one is correct. Since Richard has not attended class recently, he doesn't know any of the arivers. Assuming that Richard guesses on all

You may need to use the appropriate technology to answer this question. Based on sales over a six-month period, the five top-selling compact cars are Chevy Cruze, Ford Focus, Hyundai Elantra, Honda Civic, and Toyota Corolla. Based on total sales, the market shares for these five compact cars were Chevy Cruze 245, sales In one city showed the

Linda is a sales associate at a large auto dealership. At her commission rate of 25% of gross profit on each vehicle she sells, Linda expects to earn 380 for each car sold and 440 for each truck or SUV sold. Linda motivates herself by using probability estimates of her sales. For a sunny Saturday in April, she estimates her car sales as follows:

e. Suppose that 5,000 sales invoices are separated into four strata Stratum 1 contains 50 invoices, stratum 2 contains 500 invoices, stratum 3 contains 1,000 invoices, and stratum 4 contains 3,450 invoices. A sample of 500 sales invoices is needed. i. What type of sampling should you do? Why? ii. Explain how you would carry out the sampling

Please answer the questions below \fQuestion 4 If f(x) = cos(t) ex then f '(x) equals a) -sin(t) ex O b) cos(t) ex - ex sin(t) O c) -ex sin(t) O d) cos(t) ex O e) None of the above

A company found that new employees prefer training sessions of The training session length that received the highest rating is moderate length; shorter training sessions provided too little minutes . instruction to complete a task, while longer training sessions (Simplify your answer.) contain too much instruction to remember. For a training

I need help on this question Two sides and an angle are given. Determine whether the given information results in one triangle, two triangles, or no triangle at all. Solve any triangle(s) that results. a = 22, b = 15, B =20 O A. one triangle A = 30.11 , C = 129.89 , c=33.65 O B. two triangles A, = 30.11, C, = 129.89, c, = 33.65 or A2 = 149.89, C2

In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the following data have been gathered. Downtown Store North Mall Store Sample size 25 20 Sample mean $9 $8 Sample standard deviation $2 $1 A point estimate for the difference between the two population means is? A 95% interval

do the circle ones please Note: For the L'Hopital's Rule problems, be sure to check whether L'Hopital's Rule applies before using it!!!! If you don't the graders will take off points! Note: For the optimization problems, be sure that you find the interval your function is valid on. And be sure that you show that your answer is actually an absolute

Chrome File Edit View History Bookmarks Profiles Tab Window Help D Q Mon Oct 25 10:29 PM ... Logout X Course Hero X 2 Newport Bea X C The Manage X A Section 4.5 - x Course Hero X Course Hero X Course Hero X Course Hero X + F C webassign.net/web/Student/Assignment-Responses/submit?dep=27847192&tags=autosave#question4524705_0 B : For inIs

Use the following ANOVA table for regression to answer the questions. Analysis of Variance Source DF SS MS F P Regression 1 284.5 284.5 1.66 0.199 Residual Error 174 29823.6 171.4 Total 175 30108.1 Give the F -statistic and p -value. Enter the exact answers. The F -statistic is Enter your answer; F-statistic . The p -value is Enter your answer;

Consider the following probability distribution of returns estimated for a proposed project that involves a new MRI machine: State of the Economy Probability of Occurrence Rate of Return Very poor 0.15 -20.0% Poor 0.25 0.0 Average 0.15 15.0 Good 0.25 25.0 Very good 0.20 30.0 What is the expected rate of return on the project? Group of answer

Engineers must consider the breadths of male heads when designing helmets. The company researchers have determined that the population of potential clientele have head breadths that are normally distributed with a mean of 6.2-in and a standard deviation of 1.1-in. In what range would you expect to find the middle 98% of most head breadths? Between