Concept explainers
To check: Whether there issufficient evidence to support the suspicion of professor at 5% significance level.
Answer to Problem 2.1CYU
Yes, there is sufficient evidence to support the suspicion of professor.
Explanation of Solution
Given:
The data set is:
9 | 5 |
6 | 6 |
8 | 11 |
6 | 6 |
8 | 3 |
8 | 6 |
6 | 6 |
6 | 10 |
6.5 | 7 |
7 | 8 |
9 | 4.5 |
4 | 9 |
3 | 7 |
4 | 7 |
Formula used:
The test statistic is computed as:
Here,
Calculation:
Here,
The null and alternative hypotheses are:
The obtained excel output is:
Here, p-value is 0.0006. Here, p-value
Conclusion:
Thus, at 5% significance level there is sufficient evidence to support the suspicion of professor.
Chapter 9 Solutions
The Practice of Statistics for AP - 4th Edition
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Statistics for Business and Economics (13th Edition)
Intro Stats, Books a la Carte Edition (5th Edition)
Elementary Statistics (13th Edition)
Essentials of Statistics, Books a la Carte Edition (5th Edition)
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