27. What is the decision rule? 28. What is the equivalent z-score of x = 17? A. 1.5 C. 3.0 D. -1.97 B. -3.77 29. What is the conclusion for this problem? 30. In this same problem, how do you state the null hypothesis when it is a two-tailed test? 31. In this same problem, what are the critical values when the test to be done is two-tailed test?
27. What is the decision rule? 28. What is the equivalent z-score of x = 17? A. 1.5 C. 3.0 D. -1.97 B. -3.77 29. What is the conclusion for this problem? 30. In this same problem, how do you state the null hypothesis when it is a two-tailed test? 31. In this same problem, what are the critical values when the test to be done is two-tailed test?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Please answer 27-31, asap please
Transcribed Image Text:A single sample Z-test is to be done on a study about typhoons. Many believe that the
average number of typhoons that enter the Philippines each year is at least 18 (μo ≥ 18).
Some climatologists, however, observe that the true average number of typhoons that enter
the Philippines each year is less than 18.
Science teachers from LPU collected the data about the typhoons that entered the
country each year since 1900 (n = 32). The sample mean is x = 17. The population with a
standard deviation of a = 1.5.
The researchers chose to use Single Sample Z-Test. They agreed on a Type I error rate
of a = 0.05.
24. State the Null and Alternative Hypotheses.
25. What is the level of Condence?
20. what is the critical value?. Hint: You will find it in the standard format table.
27. What is the decision rule?
28. What is the equivalent z-score of x = 17?
A. 1.5
C. 3.0
B. -3.77
D. -1.97
29. What is the conclusion for this problem?
30. In this same problem, how do you state the null hypothesis when it is a two-tailed test?
31. In this same problem, what are the critical values when the test to be done is two-tailed
test?
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