You are performing a study about weekly per capita milk consumption. A previous study found weekly per capita milk consumption to be normally distributed, with a mean of 47.5 fluid ounces and a standard deviation of 10.9 fluid ounces. Yourandomly sample 30 people and record the weekly milk consumptions shown below.36553040424932653848 D4327395444464553515036312445604450465836(a) Draw a frequency histogram to display these data. Use seven classes. Choose the correct answer below.O AO B.OD.10-10-10-8-0-26.562.526.562.526.562.5625VolumeVolumeVolumeVolumeDo the consumptions appear to be normally distributed? Explain. Choose the correct answer below.O A. No, because the histogram is neither symmetric nor bell-shaped.O B. Yes, because the histogram is neither symmetric nor bell-shaped.O C. No, because the histogram is symmetric and bell-shaped.O D. Yes, because the histogram is symmetric and bell-shaped.Clear allFinal checkHelp me solve thisView an exampleGet more help -MacBook AirkouenbesKauenbe

Answered: You are performing a study about weekly…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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You are performing a study about weekly per capita milk consumption. A previous study found weekly per capita milk consumption to be normally distributed, with a mean of 42.1 fluid ounces and a standard deviation of 7.9 fluid ounces. You randomly sample 30 people and record the weekly milk consumption shown below. 37 47 31 34 39 42 33 53 35 43 38 26 35 49 41 40 39 42 44 42 35 30 26 38 51 38 42 39 47 34 Calculate the mean up to 2 decimal places if needed. Typed numeric answer will be automatically saved. 39
A random sample of patients visiting a hospital emergency room was obtained and the waiting time of the visitors before they saw the physician were measured. The data (in minutes) are shown below. 54 37 49 28 35 29 47 58 40 45 42 31 52 37 44 41 38 34 35 34 44 41 35 34 42 2 The deviation of the largest observation in the sample from the sample mean is, a 17.76 minutes b 18.50 minutes c 19.27 minutes d 20.07 minutes
A researcher wishes to test the effects of excerise on the ability to complete a basic skills test. He designs a pre-test and post-test to give to each participant. You believe that there was a difference in the scores. You believe the population of the differences is normally distributed, but you do not know the standard deviation. When calculating difference use Post-test minus Pre-test. pre-test post-test 63 71 97 94 66 66 41 32 96 97 41 45 79 81 98 106 76 70 63 70 42 47 86 94 Which of the following are the correct hypotheses? O Ho: Hd 2 0 HA: Ha 0(claim) O Ho: Hd = 0 HA: Hd + 0(claim) Given that a is 0.05 the critical value is 2.201 and -2.201 The test statistic is: (round to 3 places) The p-value is: (round to 3 places) The decision can be made to: O reject Ho O do not reject Ho The final conclusion is that: O There is enough evidence to reject the claim that there was a difference in the scores. O There is not enough evidence to reject the claim that there was a difference in…
Professor Pete’s calculus class has the following scores: 19 21 31 32 37 45 52 55 62 63 63 65 65 77 78 Use Excel’s STDEV.S function to find the standard deviation. (round to the hundredths place)
The incomes of trainees at a local mill are normally distributed with a mean of $1,100 and a standard deviation of $150. What percentage of trainees earn more than $1,300 a month? Group of answer choices 9.18% 40.82% 90.82% 35.31%
Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the range, variance, and standard deviation for the sample data. Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general? 40 39 37 30 18 17 16 15 14.9 13.6 The range of the sample data is $nothing million. (Type an integer or a decimal.) The variance of the sample data is nothing. (Round to two decimal places as needed.) The standard deviation of the sample data is $nothing million. (Round to two decimal places as needed.) Is the standard deviation of the sample a good estimate of the variation of salaries of TV personalities in general? A. No, because the sample is not representative of the whole population. B. Yes, because the sample is random. C. No, because there is an outlier in the sample data. D. Yes, because the…

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