The following four questions will be based on this problem. The mean of a population is assumed to be 12.1. However data suggests the mean can be greater than 12.1. A sample of size of 50 from the population is considered. Assume a calculated sample mean of 12.2 and standard deviation of 0.2. At the 5% significance level we will determine if the null hypothesis should be rejected. Give the null and alternative hypothesis for this problem.
The following four questions will be based on this problem. The mean of a population is assumed to be 12.1. However data suggests the mean can be greater than 12.1. A sample of size of 50 from the population is considered. Assume a calculated sample mean of 12.2 and standard deviation of 0.2. At the 5% significance level we will determine if the null hypothesis should be rejected. Give the null and alternative hypothesis for this problem.
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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Question 5: what is the conclusion?
Transcribed Image Text:The following four questions will be based on this problem. The
mean of a population is assumed to be 12.1. However data
suggests the mean can be greater than 12.1. A sample of size
of 50 from the population is considered. Assume a calculated
sample mean of 12.2 and standard deviation of 0.2. At the 5%
significance level we will determine if the null hypothesis
should be rejected. Give the null and alternative hypothesis
for this problem.
Transcribed Image Text:What is the conclusion?
Reject the null since the test statistic is in the rejection region and
the p value is less than the significance.
Reject the null since the test statistic is in the rejection region and
the p-value is greater than the significance.
Fail to reject the null since the test statistic is not in the rejection
region and the p-value is less than the significance..
Fail to reject the null since the test statistic is not in the rejection
region and the p-value is larger than the significance.
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