A sample mean, sample size, and sample standard deviation are provided below. Use the one-mean t-test to perform the required hypothesis test at the 1% significance level. x= 28, s = 8, n = 15, Ho: = 30, Ha:#30
A sample mean, sample size, and sample standard deviation are provided below. Use the one-mean t-test to perform the required hypothesis test at the 1% significance level. x= 28, s = 8, n = 15, Ho: = 30, Ha:#30
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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
Transcribed Image Text:A sample mean, sample size, and sample standard deviation are provided below. Use the one-mean t-test to perform the required hypothesis test at the 1%
significance level.
x= 28, s 8, n = 15, Ho: H=30, H,: p 30
Click here to view a partial table of values of t.

Transcribed Image Text:The test statistic is t= 0.98.
(Round to two decimal places as needed.)
Identify the critical value(s). Select the correct choice below and fill in the answer box within your choice.
(Round to three decimal places as needed.)
The critical value is ta =
%3D
The critical value is - ta =
%3D
The critical values are +t/2 = + 2.807
Do not reject the null hypothesis. The data do not provide sufficient evidence to conclude that the mean is less than 25.
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