22.) A school counselor is interested in testing if students are showing higher levels of anxiety during the pandemic. The counselor only has access to the school students' Mean level of Anxiety from the year before the pandemic (M = 4.5, on a scale from 1-7). The school allows the counselor to conduct a random survey with a sample of 81 of the school's students. From the sample, the counselor estimates a Mean Anxiety level of 5 with a standard deviation of 0.5. What is the Standard Error? 1 0.5 0.056 0.006 ------------------------------- 23.) Calculate and indicate the value of the appropriate test statistic for question number 22. 1.96 6.12 8.93 0.05 ------------------------------------------------ 24.) Given the appropriate test statistic for question 22, what can the school counselor conclude (two-tailed test, alpha = .05)? Reject the null hypothesis, the students' level of anxiety is significantly higher during the pandemic than the previous year Reject the null hypothesis, the students' level of anxiety is significantly lower during the pandemic than the previous year Fail to reject the null hypothesis, the students' level of anxiety is not significantly different during the pandemic than the previous year None of the above
22.) A school counselor is interested in testing if students are showing higher levels of anxiety during the pandemic. The counselor only has access to the school students' Mean level of Anxiety from the year before the pandemic (M = 4.5, on a scale from 1-7). The school allows the counselor to conduct a random survey with a sample of 81 of the school's students. From the sample, the counselor estimates a Mean Anxiety level of 5 with a standard deviation of 0.5.
What is the Standard Error?
1
0.5
0.056
0.006
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23.) Calculate and indicate the value of the appropriate test statistic for question number 22.
1.96
6.12
8.93
0.05
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24.) Given the appropriate test statistic for question 22, what can the school counselor conclude (two-tailed test, alpha = .05)?
Reject the null hypothesis, the students' level of anxiety is significantly higher during the pandemic than the previous year
Reject the null hypothesis, the students' level of anxiety is significantly lower during the pandemic than the previous year
Fail to reject the null hypothesis, the students' level of anxiety is not significantly different during the pandemic than the previous year
None of the above
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25.) Assume that on average undergraduate students drink 7.5 cups of coffee per week (with a population standard deviation of 4.7). A class of 19 psychology students drinks 5 cups on average per week.
Which of the following statistical tests should you run given this information?
One sample z-test
One sample t-test
One sample p-test
None of the above
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26.) Assume that on average undergraduate students drink 7.5 cups of coffee per week (with a population standard deviation of 4.7). A class of 19 psychology students drinks 5 cups on average per week.
Given the statistical test you are running for this example, what are the (two-tailed) critical values (alpha = .05)?
-2.09 & 2.09
-1.96 & 1.96
Can't calculate from the information provided
None of the above
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