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Mathematics Questions and Answers December 01, 2019

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ASSIGNED PROBLEM 2: Mrs. Bear has a home business in which she makes and sells stuffed animals from her home. She primarily makes two products - dolphins and manatees. Each dolphin requires 2 square feet of material, 4 ounces of stuffing and 3 hours of labor, while each manatee requires 4 feet of material, 8 ounces of stuffing and 1 hour of labor.

The dataset contains an input variable called "Movie Category" which includes all the movie categories in the market. What measurement level is the most suitable to describe this variable? (a) Ordinal (b) Interval (c) Binary (d) Nominal

What method(s) will you use to analyze your data (e.g., descriptive statistics, inferential statistics, qualitative analysis, such as content or thematic analysis)? Provide example table shells, templates, or qualitative codebook that specifies the output for each type of analysis you plan to conduct. on involve in drawing. interpreting. and

An experiment is to draw 1 card from a fair deck of playing cards. a) If you were to list the sample space, how many equally likely outcomes would it have? b) Find the probability of getting a 10. Leave your answer as a fraction. c) Find the probability of not getting a heart. Leave your answer as a fraction. d) Find the probability of getting a

Give me scenario of how normal distribution of statistics in medical malpractice statistics

A new surgical procedure can be performed using one of several possible anesthetic approaches. Ethical experiments determined the following confidence intervals for each approach: Which approach would you recommend? Relative Risk of Adverse Outcome Approach A 1.4 (0.98, 1.9) Approach B 0.6 (0.4, 0.8) Approach C 1.2 (1.1, 1.3)

A potato chip manufacturer was having problems with the Weights and Measures inspectors after the inspectors found some bags containing less than the required 42.5 grams (formerly 1.5 ounces) of chips. In response, the manufacturer had increased the weight setting on the bagging machines to 50 grams, but were now over-packing the bags and,

how do i get fractions for these numbers BbTT: 3 BBtt: 9 bbtt: 3 bbTt: 4 Bbtt: 3 BbTt: 19 BBTt: 2 BBTT: 3 bbTT: 4

El hotel es excelente. Los _______ son muy amables y las habitaciones estn limpias. Question 8 options: empleados ascensores pisos inspectores de aduanas

The following table summarizes data on smoking status and age group, and is consistent with summary quantities obtained in a poll published in a particular article. Smoking Status Age Group Smoker Nonsmoker 18 to 29 174 518 30 to 49 333 1,115 50 to 64 284 1,445 65 and older 211 1,707 Assume that it is reasonable to consider these data as

The line plot displays the cost of used books in dollars. A horizontal line starting at 1 with tick marks every one unit up to 9. The line is labeled Cost in Dollars, and the graph is titled Cost of Used Books. There is one dot above 2, 4, 8, and 9.There are two dots above 6 and 7. There are three dots above 3. Which measure of center is most

Determine the sample size you need for a 95% Confidence Interval to have margin of error of no more than 0.4 when all conditions are met

Dennis read a study that examined whether teacher-provided verbal signals helped students retain information from lectures. Dennis noticed that the researchers had made sure that an equal number of both high and low ability learners were in each condition. This is a strength in this ________ researcher report

Estimados Alumnos: Por favor participen en este foro siguiendo las siguientes instrucciones: 1. Lea el Caso Cottle-Taylor. 2. Su primera intervencin deber contestar o realizar lo siguiente: a) Qu factores determinan la demanda de los Cepillos de Dientes? b) Cmo ha sido el desempeo de Cottle en India? c) Cmo puede incrementarse la demanda de los

Consider an urgent care facility with a single doctor. Patients arrive at this facility according to a Poisson process with rate of 3 patients per hour. The doctor sees the patients on a first-come-first-serve basis. On average, the doctor spends 15 minutes with each patient. The actual time of seeing a patient follows an exponential distribution.

Average Customer Satisfction Score Mean 3.194444444 Standard Error 0.103955663 Median 3 Mode 4 Standard Deviation 1.394711569 Sample Variance 1.94522036 Kurtosis -1.206319042 Skewness -0.215387769 Range 4 Minimum 1 Maximum 5 Sum 575 Count 180 Jordan is concerned that customers will be reluctant to use the selfservice checkouts. Drawing on your

A clinical trial for a new heart disease medication is performed on a group of 30 individuals. The researchers hope the medication has profound effects on total cholesterol and triglycerides and take measures both before and three months after taking the medication. Based on the table below, calculate the following for both total cholesterol and

List all 10 possible samples (without replacement) of size 2. Use the letter abbreviation for each official. GS comma GA comma GR comma GP comma SA comma SR comma SP comma AR comma AP comma RP (Use a comma to separate answers as needed.) Part 2 b. What is the chance that the first sample in your list is selected? 0.1 (Type an exact answer.) Part 3

What are appropriate choices for decision variables in the furniture manufacturing problem (slides 27 - 33 in week #8)? A. 400x1 number of desks, 250x2 number of chairs B. x1 units of wood, x2 dollars of profit C. x1 number of desks, x2 number of chairs D. 4x1 number of desks, 3x2 number of chairs

Statistic 250 Post a problem you have conquered and want to celebrate with us. Be sure to show us how to solve it! Ask a question...What are you struggling with? What problem do you need help with? What are you most worried about for the exam? Which problem on the practice final can you just not figure out? Share a tip or trick you figured out

python and statistics!! please answer the following code AND EXPLAIN WHAT YOU DID IN ORDER TO GET GOOD FEEDBACK! I need to understand what you did in order to understand the topic :) DOWN BELOW IS THE REFERENCE/DATA NEEDED TO COMPLETE THESE QUESTIONS, THERE IS NO MISSING INFORMATION!: the dataset you will be working with:

How can the following be expanded upon:There are two different ways in which this research can be designed. Quantitatively, the AB design can be used and qualitatively, a case design can be used. Both designs will establish either a correlation

The entire MSE is based on objective, statistically based tests that are performed by the assessor. a) True b) False

Please send me answer in type form strictly prohibited handwritten solution don't use chatgpt or copied content show your own work with step by step explanation.

Audio Text MADRE: Qu pasa, Adriana? ADRIANA: Bueno, es que... tengo novio! MADRE: Cmo? Mi hija tiene novio? ADRIANA: S, mam. MADRE: Y cmo se llama mi futuro yerno? ADRIANA: Se llama Otto. MADRE: Otto? Es un nombre alemn, verdad? ADRIANA: S, sus padres vienen de Alemania, pero l es estadounidense. MADRE: Y estudia, trabaja? ADRIANA: Estudia arte y

A researcher is conducting a study on the palliative care of patients at a specific facility to determine how their chronic pain symptoms change after entering the palliative care environment. This study is aimed at determining the effectiveness of a standardized treatment protocol for the patients entering into the palliative care environment. To

A wind turbine turns wind energy into electricity using the aerodynamic force from the rotor blades. In 2019, wind power accounted for 5 percent of all electricity generated in the United States. The US Geological Survey compiled a database of over 53,700 wind turbines in the country. Several variables measured for each wind turbine in the

For this project, you will collect, summarize, and analyze a set of data of your choosing for a game design career feild. Choose two quantitative variables in which you think have a linear relationship and/or a correlation. Part I: Introduction: 5 points (three paragraphs) Explain why you are interested in this topic. State the goal of your

In this task, you will analyse statistical data, correct data errors and produce reports of the analysis on each of the three separate occasions you preformed Workplace Assessment Task 1 . Access and review the following documents/information: Financial Services Work Outcome Report prepared in Workplace Assessment Task 1 Data Interpretation Report

1. William Companies (WMB) posee y opera ductos de gas natural que distribuyen el 12% del que se consume en Estados Unidos. WMB est preocupada de que un huracn intenso interrumpa su ducto del Golfo, que recorre 691 millas a travs del Golfo de Mxico. En caso de una interrupcin, la empresa prev una prdida de $65 millones en utilidades. Suponga que

A patient is to receive 500 mL of an IV over a three hour period. What should the IV drip rate be set at in gtt/min so the patient receives the correct amount of the IV? ( 15 gtt = 1 mL) A bottle of cough syrup contains 500 mL. How many bottles of cough syrup should a mother buy if each of her 3 kids is prescribed 2 tsp of cough syrup every 4

to check if your data meets the assumptions of ANOVA. These include normality, homogeneity of variances, and sphericity. You can use tests like Shapiro-Wilk (for normality), Levene's test (for homogeneity of variances), and Mauchly's test (for sphericity) to check these assumptions

The population mean for a personality test is 85, with a standard deviation of 5. What is the z-score for someone who scored 90? The sample mean for the test scores was 66, with a standard deviation of 6. What was the z-score for someone who scored 52? What is the percentage of people who scored between the mean and a z-score of .22? What is the

2. Suppose that a paper wants to obtain public opinion of how well the government is performing in their state. The paper wishes to sample 1000 people for their study. Identify the sampling technique that was used to select these 1000 people. a. The paper selected 20 people from every city in the state. b. They randomly select 1000 people from the

Approximaately what percentage of partnered men age 70 and older is still sexually active? about 10 percent about a quarter about a third about a half about two-thirds

Forty-two percent of consumers prefer to order their groceries remotely instead of going to the supermarket. They argue that going in in person prompts individuals to purchase other items that they did not need, especially those chocolate candies and cookies by the register. If ordering groceries remotely follows a binomial distribution pattern.

How to create a tree diagram and use it to answer questions.

Carlos received his standardized test scores from school. He was in the 75th percentile for science and the 85th percentile for math. Assuming the distribution of scores is normally distributed, what z- score value corresponds to his science score

In Excel we have a set of data that records the total units sold for 10 different products. Excel calculates the average "units sold" for this set of data to be 57,031 units sold. It calculates the standard deviation of this set of data to be 10,188 units. How many standard deviations away from the mean is the "units sold" for a product that sold

1. Given that A = {1, 2, 4, 5, 8, 9, 10} and B = {3, 6, 7, 8, 10, 14}, determine B\A : a. 3, 6, 7, 8, 14 b. 3, 6. 7, 8, 10, 14 c. 3, 6, 7, 14 d. 1, 2, 4, 5, 8, 9 e. 1, 2, 4, 5, 9 2. Calcaulate the reliability of the system if all components function properly with probability 0.95. [Hint: A,B and C,D are not in sequel. Start with parallel

9 of 30 This test: 30 point(s) possible This question: 1 point(s) possible K A card is drawn at random from a well-shuffled deck of 52 cards. What is the probability of drawing a face card or a spade? . . . 11 O A. 26

The mean life of a certain tire is 30,000 miles, and the standard deviation is 2,500 miles. to. Assuming the distances are normally distributed, about what percentage of these tires will last between 22,500 and 37,500 miles? b. If we make no assumptions about the shape of the distribution, about what percentage of these tires will last between

Troy stops at the Wild Rose Casino. He will play roulette, betting on 16 until he wins 3 times. We are interested in questions related to the number of times he plays. For this type of problem, we will use the negative binomial distribution. Recall that we formulate this distribution by the number of losses, X, before the 3rd win. In other words,

Calculate x (x-bar) for the data shown, to two decimal places x 15.3 3.3 20.5 16.4 6.8 28.4 23 28.9 3.5 Jorge created a computer program that tracks how many minutes a day his friends spend online. The data below displays the data he gathered. 85.6 71.8 88.8 76.4 105.8 64.6 96.1 105.8 82.8 105.8 What is the mean minutes spent online per day? mean

A high R-squared value in a regression analysis indicates that: Question 10 Answer a. the independent variable does not explain much of the variance in the dependent variable. b. a significant portion of the variance in the dependent variable is accounted for by the independent variable. c. the regression model is overfitted. d. the regression

Can you share more about how statistical expertise can lead to inter-disciplinary collaboration? What would that look like?

A skateboarding company produced 10,200 longboards last month and found that some were defective. The company plans to make 125,000 longboards this year. Predict approximately how many longboards will be defective. The table shows for 1 month the number of longboards produced is 10,200 and the number of defective longboards is 204. In 1 year the

Directions: Show all your work. Indicate clearly the methods you use, because you will be scored on the correctness of your methods as well as on the accuracy and completeness of your results and explanations. A researcher conducted a medical study to investigate whether taking a low-dose aspirin reduces the chance of developing colon cancer. As

Use murder.csv (or MURDER.dta) to estimate the effect of capital punishment on crime rates. This data set is panel data at the state level, from 1987, 1990 and 1993.mrdrte s,t is the murder rate in state s in year t .execs,t is the total number of executions in the past three years, andunems,t is the unemployment rate in state s in year t. (15pts)

Year Powerboat Registrations (1000) Manatees killed 1977 447 13 1978 460 21 1979 481 24 1980 498 16 1981 513 24 1982 512 20 1983 526 15 1984 559 34 1985 585 33 1986 614 33 1987 645 39 1988 675 43 1989 711 50 1990 719 47 Is there any evidence that power boat registrations is related to manatee fatalities? Pearson correlation should be used for

HRMT 420 What is the significance of correlation in labor management relations? Unit 4

Population consists of the entire population (e.g., every graduate student in an online program). Sample consists of a smaller number of participants from the population (e.g., first generation graduate students at Capella enrolled in an online program) and the number of participants you anticipate will be in your study[sample = N]. Participants

IS 601 Assignment 7 1. The production of car tires in any given year is related to the number of cars produced that year and in prior years. Suppose our econometric model resulted in the following data. Regression Coefficient t-stat X 1 =Cars produced this year 5.00 10.4 X 2 =Cars produced last year 0.25 0.6 X 3 =Cars produced 2 years ago 0.67 1.4

. A study by Zhou, Vohs, & Baumeister (2009) showed that handling money reduces the perception pain. In this study, a group of college students was told that they were participating in a manual dexterity study. Half the students were given a stack of money to count and the other half got a stack of blank pieces of paper. After the counting task,

In the case of the formula for the confidence interval/test statistic the formula in this case that we are supposed use is: x-bar plus or minus t* times s/the squareroot of n

If the Hartwell Environmental Lab wanted to detect an alternative hypothesis of 64 ppm while and maintain a statistical power of at least 95% how large of a sample would they need to take? Given standard deviation = 4, null hypothesis = 65, alternative hypothesis = 64, hypothesis direction: left-tailed, alpha = 0.01

Name at least 4 HBCU's in the state of Georgia (at least one must be outside of Atlanta

Yo _____ a todos los juegos de ftbol americano de la UofA. Question 25 options: a. vamos b. voy c. vais d. vanLa Universidad de Arizona est en el desierto, y mis amigos y yo _____ mucha agua. Question 26 options: a. bebis b. bebes c. beben d. bebemosTodas las maanas Cristina y yo_____ (leer) las noticias. Question 27 options: leemos leen lee leo

appoximately 10% of americans are left handed. A study on the relatiuonship between handedness and profession found that in a random sample of 105 lawyers, 16 of them were left handed. Test the hypothgesis that the proportiuon of left handed lawyers differes from the proportion of left handed americans. FInd test statistic

31. Failures in aircraft gas turbine engines due to high cycle fatigue is a pervasive problem. The article "Effect of Crystal Orientation on Fatigue Failure of Single Crystal Nickel Base Turbine Blade Superalloys" (J. of Engr. for Gas Turbines and Power, 2002: 161-176) gave the accompany ing data and fit a nonlinear regression function in order to

Activity 7 : Probability and Odds Suppose A and B are independent events for which: () = 1 2 () =1 3 Find the following probabilities: a) ( ) b) ( )

Suppose a researcher compiled a data set consisting of the following variables for a sample of 100 retired men. For each variable, select whether it is discrete or continuous. The number of college football games ever attended The number of pets currently living in the household Highest grade completed Body temperature Miles driven in the last year

1. Write down the Excel formula that selects a number randomly from the set {1,2,3,.....,200}, such that each number in the set has the same probability of being selected

Hey! I need help with this two-part question: a) Using R as a calculator to do the "by-hand" calculations (means to show the steps as if you were solving by hand) to test the claim that the population means sepal length for iris species virginica is different than the observed sample mean sepal length for iris species versicolor, using a 5%

In the standard model of cosmology (excepting accelerated expansion) there are three possible fates for the universe. For each fate, state the geometry (shape) of the universe (sphere, saddle, flat), the ulimtate fate of the universe (expand forever, expand forever ever-slowing, big cruch), and how the critical density compares with the actual

The table below shows the number of patients at a community hospital: Outpatient Hospitalized Total Men 65 30 95 Women 50 45 95 Total 115 75 190 nter e (a) Find the probability that a patient is hospitalized GIVEN that the patient is a woman. (b) Find the probability that a patient is a woman GIVEN that the patient is hospitalized

Consider the real estate data on 60 homes in a middle-class neighborhood of Southwest Houston provided on the Excel data file. The variables are: Price (Y) in $1000, Square Feet (X1), # of Rooms (X2), # of Bedrooms (X3), # of Bathrooms (X4), Age (X5) 1. Construct Scatter plot of all 5 variables (one at a time) vs. Price (Y) (5 graphs), insert best

Using the Z score calculated in Step 3 and the critical value calculated in Step 2 (alpha = 0.01), is the z-score in the critical region? What is our conclusion? --- Please use the Unit Normal table to answer the following questions about critical values. Remember to consider both sides of the distribution (split the alpha level) for these

Use the word bank to answer the questions about college majors in the U.S. administracin de empresas | biologa | ciencias de la computacin | ciencias fsicas | derecho | idiomas | medicina | periodismo | psicologa Modelo Qu estudias para ser abogado? derecho 1. Qu estudias para ser mdico? enter answer 2. Qu estudias para ser mujer de negocios?

How do you support student's confidence and motivation during during leteracy lessons so that all students can florish

Adirondack Savings Bank (ASB) has $1 million in new funds that must be allocated to home loans, personal loans, and automobile loans. The annual rates of return for the three types of loans are 6% for home loans, 10% for personal loans, and 9% for automobile loans. The bank's planning committee has decided that at least 40% of the new funds must

A local brewery distributes beer in bottles labeled 32 ounces. A government agency thinks that the brewery is distributing less than that amount. The agency selects 44 of these bottles, measures their contents, and obtains a sample mean of 27.4 ounces with a population standard deviation of 1.23 ounce. Use a 0.07 significance level to test the

expain what is westgard rule 13s One control observation exceeding the mean + 3s. Allows high sensitivity to random error (incorrect pipetting etc)

Se conoce como el metodo para determinar cientificamente la validez de los tests Seleccione una: Confiabilidad Desviacion Validez Analisis factorial

Using 5% significance level, determine whether there is evidence that mean for the pollutant concentration for Filter A exceeds Filter B.

This is part of my practice test for my final. Can anyone explain what is going on and how am I supposed to solve this with so little info. Thank you for any tries! And yes, this was the first question asked!

how to send an email to my profesor to let her know about days that i will need off from scholl. email sample

Consumer Reports organization wants to know whether Americans are willing to pay more for products with social and environmental benefits despite the current tough economic times. So, the organization surveys a random sample of 1050 adult Americans regarding their opinion about this issue. a) What is the population for this sample survey? What is

Required: a. Interpret the findings. Are all hypotheses supported? b. Does PJ play full or partial mediation? Why? Thank you!

Suppose that B 1 and B 2 are mutually exclusive and complementary events, such that P ( B 1 ) = .6 andConsider another event A such that P ( A | B 1 ) =.2 and P ( A | B 2 ) = .5. Find P ( B 1 | A ). a) .800 b) .240 c) .375 d) .625

[ Interpret the graphs and statistics: Interpret the center, spread, shape, and any unusual characteristic (outliers, gaps, etc.) for house sales and square footage.] [ Interpret the graphs and statistics: Compare and contrast center, spread, shape, and any unusual characteristic for your sample of house sales with the national population. Also,

can you explain the concepts, and tell me the logic, and the key points of the questions, and show R programming function to solve the questions?

I need help explaining my conclusion on my homework assignment? Q12.) Let's perform analysis on retention based on gender variable. You may find table completed in Question 5 useful for this analysis. At 90% confidence, test hypothesis that if a new option became available on campus for meals then males are less likely to stay with existing

Given the steps of backward induction below, put them in order from left to right. Examine payoffs Start at the terminal nodes Prune the decision tree Choose highest payoff

The slope of the regression equation, b, is: Question 30 options: the same as the coefficient of determination the correlation coefficient between X and Y another way of expressing the standard error of the estimate usually hand-calculated

The research topic is "Radiation Exposure." 1. A bar chart and a line graph showing radiation exposure. 2. An Excel graph showing Radiation exposure. 3. A pie chart showing radiation exposure.

15. Scenario: Is there a relationship between number of hours studied (X) and final exam scores (Y)? Question: What is the scale of measurement for variable X in this scenario? 1) Nominal 2) Ordinal 3) Scale

A certain flight arrives on time 90 percent of the time . Suppose 112 flights are randomly selected . Use the normal approximation to the binomial to approximate the probability that ( a ) exactly 109 flights are on time . ( b ) at least 109 flights are on time , ( c ) fewer than 100 flights are on time . ( d ) between 100 and 109 , inclusive are

If a researcher were interested in understanding how much the NRA spent in each state, what visual could be created to accurately display this information in the bar graph? (A) A table that gives details about the home states of candidates receiving money from the NRA in 1994 (B) An infographic that explains how the NRA has helped candidates win

Let's say a company is designing a new screen for use in a laptop. They hire a researcher to test different designs to determine which ones lead to better visibility. Which kind of research would they be conducting? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a indirect research b

A researcher planned to conduct an independent-samples t-test to test for a difference between the number of math problems completed correctly by Group 1, who listened to nature sounds in the background during testing, and by Group 2, who listened to heavy metal music in the background during testing. Select the appropriate null hypothesis for a

hi tutor please help me with this , no need for the solution just type in the answer i need this asap only answer you may used the R app if needed for references please open this : https://drive.google.com/drive/folders/16HjS9-hesfBBzi1kMvqiMHKTOCFOufWO

Encuentre la probabilidad: P (Z > -1.44) Grupo de opciones de respuesta 0.4251 0.003745 0.9251 0.0749

What strategy helps maintain readability in a stem-and-leaf display with a lot of data points? Question 35Answer a. Adding more stems than necessary b. Keeping consistent intervals for the stems c. Removing all the outliers d. Grouping all the data under a single stem

Mi madre_____(dormir) seis horas. Question 28 options: dormimos duerme duermo duermesHelena siempre____ (empezar) un pasatiempo nuevo. Question 29 options: empiezo empezar empieza empezamosPor qu siempre ____ (yo- decir) la verdad? Question 30 options: digo decimos dice dicesPor qu siempre ____ (yo- decir) la verdad? Question 30 options: digo

Why is it necessary to include time when reporting an incidence proportion? Question 13 options: An incidence proportion only applies to a specified population, and time helps to define that population. Time is unnecessary to include when reporting any epidemiological methods. The proportion of a population which develops certain diseases will

For a set of 70 coin flips, we record 21 heads and 49 tails. 1) If p is the true probability of heads, what is our best estimate for p here? 2) What is our best estimate for the standard deviation

(18) Female Australian redback spiders, Latrodectus hasselti, are about 50 times larger than males and often eat the males during mating. This might sound like a horrible accident, but males could gain some indirect advantage by being cannibalized in this way. Perhaps a female is more likely to accept the sperm of a male that she has eaten than

In most public health and related research, how many 95% confidence intervals for the true population quantity of interest (mean, difference in proportions, incidence rate ratio, etc..) will be computed?

Seventy independent messages are sent from an electronic transmission center. Messages are processed sequentially, one after another. Transmission time of each message is Exponential with parameter = 5 per minute. Find the probability that all 70 messages are transmitted in less than 12 minutes. Use the Central Limit Theorem. Round your answer to

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