Concept explainers
a.
To find: Whether the result is significance at 5% level of significance.
a.
Answer to Problem 93E
No, it is not significant.
Explanation of Solution
Given:
The hypotheses are:
Calculation:
The obtained Ti-83 output is:
The p-value is more than the significance level. Thus, the null hypothesis cannot be rejected.
At 5% significance level, there are insufficient evidence to support the provided claim that the test is significant.
b.
To find: Whether the result is significance at 5% level of significance.
b.
Answer to Problem 93E
Yes, it is significant.
Explanation of Solution
Given:
The hypotheses are:
Calculation:
The obtained Ti-83 output is:
The p-value is less than the significance level. Thus, the null hypothesis can be rejected.
At 5% significance level, there are sufficient evidence to support the provided claim that the test is significant.
c.
To explain: The conclusion that could be drawn using the result of above two parts.
c.
Explanation of Solution
From above parts, it is known that all values are same except the values of the mean, Thus, it could be said that the small change in the value of the sample mean could change the result of overall hypothesis testing.
Chapter 9 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Statistics for Psychology
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Introductory Statistics (2nd Edition)
Introductory Statistics
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