A researcher claims that a post-lunch nap decreases the amount of time it takes males to sprint 20 meters after a night with only 4 hours of sleep. The table shows the amounts of time (in seconds) it took for 10 males to sprint 20 meters after a night with only 4 hours of sleep when they did not take a post-lunch nap and when they did take a post-lunch nap. At a 0.01, is there enoughevidence to support the researcher's claim? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (e) below.MaleSprint time (without154.01 3.93 3.95 4.05 3.00 4.06 3.93 4.05 3.97 3.05Sprint time (with nap)4.00 3.03 3.04 4.05 3.03 4.04 3.94 4.02 3.00 3.92(a) Identify the claim and state Ho and H₂-What is the claim?A A post-lunch nap decreases the amount of time it takes males to sprint 20 metersOB. A post-lunch nap increases the amount of time it takes males to sprint 20 metersOC. A night with only 4 hours of sleep increases the amount of time it takes males to sprint 20 meters.OD. A night with only 4 hours of sleep decreases the amount of time it takes males to sprint 20 meters.Let be the hypothesized mean of the difference in the sprint times (without nap-with nap). What are H, and H,?OD 1:4-0H₂O(b) Find the critical value(s) and identify the rejection region(s).Select the correct choice below and fill in any answer boxes to complete your choice(Round to two decimal places as needed.)○ A. 14OB 1OC POC. H₁₂H₂ saOB KROCOE 16:120F. HOH₂: 140

The question is about hypothesis testing.Given :Number of males selected ( n ) = 10Sprint time…

Answered: ence to support the researcher's clam?…

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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A researcher is interested in investigating whether the military branch a person signs up for and the person's blood type are dependent. The table below shows the results of a survey. Frequencies of Military Branch and Blood Type O A B AB 137 52 40 22 139 51 65 24 121 82 69 21 Marines 91 50 60 25 Army Navy Air Force Click Download CSV to download csv file of data or copy/paste the data into Excel. After downloading the file, you may want to save it as an Excel Workbook. Use the a= 0.01 significance level. a. What is the correct statistical test to use? O Independence O Homogeneity Goodness-of-Fit O Paired t-test b. What are the null and alternative hypotheses? Ho: O Blood type and branch of the military are independent. The distribution of blood types is not the same for each branch of the military. O The distribution of blood types is the same for each branch of the military. Blood type and branch of the military are dependent. Ha: The distribution of blood types is the same for each…
The following cross-tabulation shows data from a sample of 70 people, broken down by their age (over 45, or 45 and under) and their internet provider (Telstra, or Not Telstra). 45 and under Over 45 TOTAL Telstra 15 23 38 Chi-square test. Dependent samples test. One sample test. Correlation test. Not Telstra 25 7 32 TOTAL 40 30 70 The most appropriate hypothesis test to perform for such data would be: A. Difference between two population means. B. C. D. E.
Which of the following are assumptions for testing a single population proportion? (Select all that apply.) O The variable of interest is numerical. O The variable of interest is categorical. The sample size is at least 15. The sample size is at least 30. The number of success and failures based off the sample proportion are at least 15. The number of success and failures based off the sample proportion are at least 30. The number of success and failures based off the claimed proportion are at least 15. O The number of success and failures based off the claimed proportion are at least 30. O The population is normal. Random sample. O Independent observations within the sample.
Give formulas of Hypothesis Testing in Probability and Statistics. A. Rejection Region (Zc=?) B. P-Value C. Test Statistics
use the data to perform Bartlett’s test, show clear calculation
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I of 10 (0 complete) v 7.1.1 A population has mean of 121. If a random sample of 8 items from the population results in the following sampled values, what is the sampling error for the sample? 116 122 98 145 148 110 141 144 O The sampling error for the given sample is. (Simplify your answer. Do not round.) Enter your answer in the answer box and then click Check Answer. Clear All All parts showing MacBook Air
Which of the following statements are true?
Suppose the following data is a realization (rounded) of a random sample onX. Obtain a histogram with the argument pr=T (data are in ex6111.rda).9 39 38 23 8 47 21 22 18 10 17 22 149 5 26 11 31 15 25 9 29 28 19 8

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