Use the following information to answer the question. Studies show that the level of anxiety has increased since the pandemic. The average score before the pandemic was mu equal to 10. A sample of 76 individuals surveyed in the past three months produced M=12.8 and s=6.7. Based on the sample, was there a significant increase in the average anxiety level since the pandemic started at the 5% significance level?

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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Use the following information to answer the question.
Studies show that the level of anxiety has increased since the pandemic.
The average score before the pandemic was mu equal to 10. A sample of
76 individuals surveyed in the past three months produced M=12.8 and
s=6.7. Based on the sample, was there a significant increase in the
average anxiety level since the pandemic started at the 5% significance
level?
What hypothesis test is this?
One-Sample T-Test for Mean
Two-Sample T-Test for Mean
One-Sample Z-Test for Mean
Chi-Square Test for Independence
Transcribed Image Text:Use the following information to answer the question. Studies show that the level of anxiety has increased since the pandemic. The average score before the pandemic was mu equal to 10. A sample of 76 individuals surveyed in the past three months produced M=12.8 and s=6.7. Based on the sample, was there a significant increase in the average anxiety level since the pandemic started at the 5% significance level? What hypothesis test is this? One-Sample T-Test for Mean Two-Sample T-Test for Mean One-Sample Z-Test for Mean Chi-Square Test for Independence
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