**Pulse Rates of Identical Twins**A researcher wanted to compare the pulse rates of identical twins to see whether there was any difference. Twelve sets of twins were randomly selected. The rates are given in the table as number of beats per minute. Find the 90% confidence interval for the difference of the average pulse rates of twins. Assume the variables are normally distributed. Let \( \mu_A \) be the average of twin A and \( \mu_D = \mu_A - \mu_B \). Round the answer to at least one decimal place.| Twin A | 85 | 83 | 84 | 93 | 86 | 78 | 76 | 92 | 91 | 90 | 88 | 87 ||--------|----|----|----|----|----|----|----|----|----|----|----|----|| Twin B | 89 | 93 | 80 | 86 | 84 | 78 | 83 | 93 | 79 | 95 | 86 | 83 |A button is available to send data to Excel for further analysis.[Interactive features for entering and checking the confidence interval calculations are displayed below the table.]

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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 study wants to see if a program aimed at increasing reading accuracy works for elementary school students. They have a group of 20 participants. All 20 get measured at the beginning of the study, and measured again at the completion of the reading program. This is an example of a: Within subjects study Between subjects study A correlation study A mixed design study The main difference between an ANOVA and a t-test is: Group of answer choices An ANOVA can look at more than 2, and t-test looks at only 2 means at a time An ANOVA looks at only 2 means at a time, and t-test can look at more than 2 A t-test can have nominal dependent variables An ANOVA can have a nominal dependent variable
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1:37 PM Wed Apr 21 * 72% 88 Q Stats Exam •.. Untitled Notebook (1) Stats Exam 37. The manager of Green Valley medical center claims that the median number of patients seen by doctors who work at the center is 85. To test this claim, 20 days are randomly selected and the number of patients seen is recorded as shown. At a=0.1, test the claim. (Use sign test) 86 82 90 88 85 85 94 93 69 61 89 90 91 94 78 85 71 77 69 77

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