Suppose the random variable x is best described by a normal distribution with μ = 27 and o=5. Find the z-score that corresponds to each of thefollowing x-values.Pa.x=17 b. x=16 c. x= 12 d. x= 14 e.x=21 f.x=33a. The z-score that corresponds to x= 17 is z=(Round to two decimal places as needed.)b. The z-score that corresponds to x= 16 is z =(Round to two decimal places as needed.)c. The z-score that corresponds to x = 12 is z =(Round to two decimal places as needed.)d. The z-score that corresponds to x = 14 is z=(Round to two decimal places as needed.)e. The z-score that corresponds to x = 21 is z =(Round to two decimal places as needed.)f. The z-score that corresponds to x = 33 is z =(Round to two decimal places as needed.)Time Remaining: 01:21:35Next?2 Weeksquestions

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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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Statistics students believe that the mean score on a first statistics test is 65. The instructor thinks that the mean score is higher. She samples 10 statistics students and obtains the scores: Grades 74.4 96 83.2 65 63.9 64.3 74.4 69 68.4 88 Test grades are believed to be normally distributed.Use a significance level of 5%. State the alternative hypothesis: HA:HA: μ>65μ>65 μ<65μ<65 μ≠65μ≠65 State the mean of the sample: (Round to two decimal places.) State the standard error of the sample means: (Round to four decimal places.) State the test statistic: t=t= (Round to four decimal places.) State the p-value: (Round to four decimal places.) Decision: Reject the null hypothesis. Do not reject the null hypothesis.
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uppose the random variable x is best described by a normal distribution with u=27 and o=5. Find the z-score that corresponds to llowing x-values. a.x=17 b.x=16 c. x= 12 d.x=14 e.x-21 f.x=33 B