The Toylot company makes an electric train with a motor that it daims will draw an average of only 0.8 ampere (A) under a normal load. A sample of nine motors was tested, and it was found that the mean curent was -138 A, with a sample standard deviation of s -0.45 A. Do the data incicate that the Toylet daim of D.8 A is too low? (Use a 1% level of significance) What are we testing in this problem? O single mean O single proportion (a) What is the level of significance? State the null and altemate hypotheses. O H: 0.B; H -0.8 O Hg: p.0.B; H:p-0.8 O Ha: - 0.8; Hi> 0.8 O Ha:-0H; Hi 0.8 O Ha: p-0.8; H: p. 0.8 O H: p- 0.8; H:p> 0.8 (b) What sampling distribution will you use? What assumptions are you making? O The Student's t, since we assume that x has a normal distribution with known . O The standard normal, sinoe we assume that x has a normal distribution with known , O The standard normal, since we assume that x has a normal distribution with uninown o. O The Student's t, since we assume that x has a normal distribution with unknown o. What is the value of the sample test statistic? (Round your answer to three dedmal places.) (c) Find (ar estimate) the Pvalue. O Pvalue >0.250 O 0.125

The Toylot company makes an electric train with a motor that it daims will draw an average of only 0.8 ampere (A) under a normal load. A sample of nine motors was tested, and it was found that the mean curent was -138 A, with a sample standard deviation of s -0.45 A. Do the data incicate that the Toylet daim of D.8 A is too low? (Use a 1% level of significance) What are we testing in this problem? O single mean O single proportion (a) What is the level of significance? State the null and altemate hypotheses. O H: 0.B; H -0.8 O Hg: p.0.B; H:p-0.8 O Ha: - 0.8; Hi> 0.8 O Ha:-0H; Hi 0.8 O Ha: p-0.8; H: p. 0.8 O H: p- 0.8; H:p> 0.8 (b) What sampling distribution will you use? What assumptions are you making? O The Student's t, since we assume that x has a normal distribution with known . O The standard normal, sinoe we assume that x has a normal distribution with known , O The standard normal, since we assume that x has a normal distribution with uninown o. O The Student's t, since we assume that x has a normal distribution with unknown o. What is the value of the sample test statistic? (Round your answer to three dedmal places.) (c) Find (ar estimate) the Pvalue. O Pvalue >0.250 O 0.125

Name: The Toylot company makes an electric train with a motor that it daims
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Description: The Toylot company makes an electric train with a motor that it daims will draw an average of only 0.8 ampere (A) under a normal load. A sample of nine motors was tested, and it was found that the mean curent was -138 A, with a sample standard devia

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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