May I get help in answering the below within the next hour please. Urgent Help N
ID: 3151604 • Letter: M
Question
May I get help in answering the below within the next hour please. Urgent Help Needed - Part III
11. When conducting a z-test, what is the critical value for a one-tailed test with alpha = .05?
12. Fill in the table with the correct decision, Type I error, or Type II error
True State of the World
Decision
Null is true
Null is false
Reject Null
(1)
(2)
Fail to reject null
(3)
(4)
Please make sure your answers are preceded by the numbers 1, 2, 3, and 4.
13.What is the appropriate statistical analysis for the following hypothetical study:
A researcher wants to know if her sample of students test scores (M = 87) differ from other college students (µ = 85, s = 5).
14. What is the appropriate statistical analysis for the following hypothetical study:
At the end of the semester, I want to compare your pretest scores to your posttest scores to determine if your scores differ.
15. What is the appropriate statistical analysis for the following hypothetical study:
A social psychologist is interested in whether there are gender differences in the number of friends a person has.
True State of the World
Decision
Null is true
Null is false
Reject Null
(1)
(2)
Fail to reject null
(3)
(4)
Explanation / Answer
11.
As this is a one tailed test at alpha = 0.05, using the z table/technology,
zcrit = 1.645 [ANSWER]
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12.
A type I error is incorrectly rejecting a true Ho.
A type II error is incorrectly failing to reject a false Ho. Hence, the table:
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True State of the World Decision Null is true Null is false Reject Null Type I Correct Decision Fail to reject null Correct Decision Type II