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 is the critical value for this test?

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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 is the critical value for this test?
2.000
-1.671
1.671
-2.000
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 is the critical value for this test? 2.000 -1.671 1.671 -2.000
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