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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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jlg71 jlg71
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A year ago

Exhibit 9-7
A random sample of 16 statistics examinations from a large population was taken. The average score in the sample was 78.6 with a variance of 64. We are interested in determining whether the average grade of the population is significantly more than 75. Assume the distribution of the population of grades is normal.


Refer to Exhibit 9-7. The test statistic is



▸

0.45



▸

1.80



▸

3.6



▸

8

Textbook 
Essentials of Statistics for Business and Economics

Essentials of Statistics for Business and Economics


Edition: 7th
Authors:
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raouldukraoulduk
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A year ago
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jlg71 Author
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A year ago
Helped a lot
Danivalda
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Yesterday
Brilliant ツ
kaytee23
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2 hours ago
Good timing, thanks!
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