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Inferential Statistics Problems -
Problem 1 - One Sample t-Test Hypothesis Testing
(Refer to data on the following page for the research problem and Refer to the attached computer printout for the obtained statistic)
1. Null Hypothesis (H0):
2. Alternative Hypothesis (H1):
3. Statistical Test:
4. Significance Level:
5. Critical Region:
7. Obtained Statistic:
8. Statistical Decision:
9. Rationale for Statistical Decision:
10. Meaning of The Decision:
Data Set for Problem -
The superintendent of Zody school district claims that the children in her district are brighter, on the average, than the general population of students. In order to determine the IQ of school children in the district, a study was conducted. The results were as shown in the accompanying table. The mean of the general population of school children is 106. Set this up in formal statistical terms (i.e., H0, H1, etc) and draw the appropriate conclusions. Employ a one-tailed test, α = 0.05.
Test Scores
105
109
115
112
124
103
110
125
99
Attachment:- Inferential Statistics Problems.rar
Verified Expert
Here in this problem we have to test the one tail hypothesis and here we used t test because we do not know about the population standard deviation ,so after applying whole procedure we conclude that we do not have any evidence to reject null hypothesis, that is student of general population is less brighter than district student.
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