A random sample of n,- 49 measurements from a population with population standard deviation o,-3 had a sample mean of x - 9. An independent random sample of n, - 64 measurements from a second population with population standard deviation o,4 had a sample mean of x,- 11. Test t claim that the population means are different. Use level of significance 0.01. (a) Check Requirements: What distribution does the sample test statistic follow? Explain. O The Student's t. We assume that both population distributions are approximately normal with known standard deviations. O The standard normal. We assume that both population distributions are approximately normal with known standard deviations. O The Student's t. We assume that both population distributions are approximately normal with unknown standard deviations. O The standard normal. We assume that both population distributions are approximately normal with unknown standard deviations. (b) State the hypotheses. (c) Compute x - Compute the corresponding sample distribution value. (Test the difference - H. Round your answer to two decimal places.) (d) Find the P-value of the sample test statistic. (Round your answer to four decimal places.)

A random sample of n,- 49 measurements from a population with population standard deviation o,-3 had a sample mean of x - 9. An independent random sample of n, - 64 measurements from a second population with population standard deviation o,4 had a sample mean of x,- 11. Test t claim that the population means are different. Use level of significance 0.01. (a) Check Requirements: What distribution does the sample test statistic follow? Explain. O The Student's t. We assume that both population distributions are approximately normal with known standard deviations. O The standard normal. We assume that both population distributions are approximately normal with known standard deviations. O The Student's t. We assume that both population distributions are approximately normal with unknown standard deviations. O The standard normal. We assume that both population distributions are approximately normal with unknown standard deviations. (b) State the hypotheses. (c) Compute x - Compute the corresponding sample distribution value. (Test the difference - H. Round your answer to two decimal places.) (d) Find the P-value of the sample test statistic. (Round your answer to four decimal places.)

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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