A random sample of n=25 is obtained from a population with variance o², and the sample mean is computed. Test the null hypothesis Ho: = 120 versus the alternative hypothesis H₁: H a = 0.05. Compute the critical value x and state your decision rule for the options below. a. The population variance is o² = 196. b. The population variance is o² = 400. c. The population variance is o² = 900. d. The population variance is o² = 600. Click the icon to view the standard normal table of the cumulative distribution function. (Round to four decimal places as needed.)
A random sample of n=25 is obtained from a population with variance o², and the sample mean is computed. Test the null hypothesis Ho: = 120 versus the alternative hypothesis H₁: H a = 0.05. Compute the critical value x and state your decision rule for the options below. a. The population variance is o² = 196. b. The population variance is o² = 400. c. The population variance is o² = 900. d. The population variance is o² = 600. Click the icon to view the standard normal table of the cumulative distribution function. (Round to four decimal places as needed.)
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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Transcribed Image Text:A random sample of n = 25 is obtained from a population with variance o², and the sample mean is computed. Test the null hypothesis Ho: μ = 120 versus the alternative hypothesis H₁: μ> 120 with
x = 0.05. Compute the critical value x, and state your decision rule for the options below.
a. The population variance is o² = 196.
b. The population variance is o² = 400.
c. The population variance is o² = 900.
d. The population variance is o² = 600.
Click the icon to view the standard normal table of the cumulative distribution function.
a. Xc =
(Round to four decimal places as needed.)
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