C.The random sample of 625 batteries taken by the consumer organisation turned outto have a mean operating time of 19.35 hours.Does this sample look like it belongs to the sampling distribution displayed in Figure 1?Explain/Justify your answer. [Does this sample likely to happen?]Type your answer in this space - the box will expand automaticallyd.Given that the sample was randomly selected from all batteries manufactured by theBetterbuy Battery Company in March, and given that each battery's operating timewas measured accurately, what conclusion can we reach from part (c)?Page 9 of 15

Answered: Image /qna-images/answer/b8c84e21-60a2-439e-a985-13e22bdcce1b.jpg

Answered: C. The random sample of 625 batteries…

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 difference between the mean annual salaries of statisticians in Region 1 and Region 2 more than $4000? To decide, you select a random sample of statisticians from each region. The results of each survey are shown to the right. At a = 0.10, what should you conclude? Region 1 X1 = $67,700 01 = $8875 Region 2 X2 = $61,000 02 = $9250 n1 = 48 n2 = 44 Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Choose the correct answer below. O A. Reject Ho. At the 10% significance level, there is sufficient evidence to support the claim that the difference between the mean annual salaries is more than $4000. O B. Fail to reject Ho. At the 10% significance level, there is sufficient evidence to support the claim that the difference between the mean annual salaries is more than $4000. OC. Reject Ho. At the 10% significance level, there is insufficient evidence to support the claim that the difference between…

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