A manufacturer of socks does a strength test of socks by stretching them until theytear. It is found that, socks within 3 standard deviations of the mean strength meetthe standards. Using Chebychev's theorem, what is the minimum percentage of thesocks that meet the criteria?2968 %95%88.9 %99.7%

Given Socks within 3 standard deviations of the mean strength meet the standards

Answered: A manufacturer of socks does a strength…

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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Doritos Some students checked 6 bags of Doritosmarked with a net weight of 28.3 grams. They carefully weighed the contents of each bag, recording the follow-ing weights (in grams): 29.2, 28.5, 28.7, 28.9, 29.1, 29.5. a) Do these data satisfy the assumptions for inference?Explain.b) Find the mean and standard deviation of the weights.c) Create a 95% confidence interval for the mean weightof such bags of chips.d) Explain in context what your interval means.e) Comment on the company’s stated net weight of28.3 grams.
Manually find the first quartile as explained in the lectures for the following values: 3, 6, 18, 6, 10, 4,
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Is the difference between the mean annual salaries of registered nurses in State A and State B equal to $10,500? To decide, you select a random sample of registered nurses from each state. The results of each survey are shown. Assume the population standard deviations are o, $8337 and o, = $7633. At a = 0.01, what can you conclude? Registered Nurses in State A Registered Nurses in State B X1 75,695 70,695 %3D %3D X2 30 n2 25 What are the null and alternative hypotheses for this test? O A. Ho: H1 - H22 10,500 Ha: H1 - H2 10,500 Ha: H1 - H25 10,500 O F. Ho: H1 - H2s 10,500 Ha: H1 - H2 > 10,500 Determine the critical value(s). Zo = (Round to three decimal places as needed. Use a comma to separate answers as needed.)
289 221 301 374 336 351 a)what is the standard deviation b) What is the first quartile and third quartile in this sample? c) What is the 43rd percentile of the data
Is the difference between the mean annual salaries of registered nurses in State A and State B equal to $10,500? To decide, you select a random sample of registered nurses from each state. The results of each survey are shown. Assume the population standard deviations are o, = $8337 and o, = $7633. At a = 0.01, what can you conclude? Registered Nurses in State A Registered Nurses in State B 75,695 70,695 %3D %3D X1 X2 n1 30 n2 25 What are the null and alternative hypotheses for this test? A. Ho: H1 - H22 10,500 Ha: H1 - H2 10,500 Ha: H1 - H2s 10,500 O F. Ho: H1 - H2 S 10,500 Hai H1 - H2 > 10,500 Determine the critical value(s). (Round to three decimal places as needed. Use a comma to separate answers as needed.)
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