In a certain population, let us assume that highschool scores are normally distributed with mean of74 and standard deviation of 15. What percentageof the population have high school scores less than77?Select one:O a. 97.72 %O b. 2.28 %O c. 57.93%O d. 42.07 %

Answered: Image /qna-images/answer/94ba823e-7868-4fd1-b295-5f951652d6a0.jpg

Answered: of the population have high school…

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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Is the average time to complete an obstacle course different when a patch is placed over the right eye than when a patch is placed over the left eye? Thirteen randomly selected volunteers first completed an obstacle course with a patch over one eye and then completed an equally difficult obstacle course with a patch over the other eye. The completion times are shown below. "Left" means the patch was placed over the left eye and "Right" means the patch was placed over the right eye. Time to Complete the Course Right 48 43 45 43 46 44 40 43 Left 47 37 45 38 43 42 39 40 Assume a Normal distribution. What can be concluded at the the a = 0.01 level of significance level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer Select an answer vSelect an answer | (please enter a decimal) H: Select an answer v Select an answer v Select an answer v (Please enter a decimal) b. The test statistic ? |(please show your…
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of the population have high school scores less than 77?