x= Ex: 0.123 t= ŵ Pick î Р Since the p-value is Pick î Round all answers to 3 decimal places. han the significance level 0.05, the null hypothesis Pick Evidence exists that the mean GPA is greater than 2.750.
x= Ex: 0.123 t= ŵ Pick î Р Since the p-value is Pick î Round all answers to 3 decimal places. han the significance level 0.05, the null hypothesis Pick Evidence exists that the mean GPA is greater than 2.750.
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
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Transcribed Image Text:Jump to level 1
Tesis test for a population mean
Use Sheet 3 of the Excel file to answer the following questions.
A school administrator believes that the mean class GPAS for a given course are higher than the preferred
mean of 2.750 at a significance level of 0.05, and checks a randomly chosen sample of 50 classes.
Create a histogram, and calculate , the t-statistic, and the p-value.
From the histogram, can normality be assumed? Yes
x= Ex: 0.123
t=
P=
Check
↑
1
ŵ
Next
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ŵ
Since the p-value is Pick han the significance level 0.05, the null hypothesis Pick
Pick
vidence exists that the mean GPA is greater than 2.750.
Round all answers to 3 decimal places.
M
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