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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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bioboy12 bioboy12
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A year ago

A test on world history was given to a group of individuals before and also after a film on the history of the world was presented. The results are given below. We want to determine if the film significantly increased the test scores. (For the following matched samples, let the difference "d" be d = after - before.)

Individual

After

Before

1

92

86

2

86

88

3

89

84

4

90

90

5

93

85

6

88

90

7

97

91


a.Give the hypotheses for this problem.
b.Compute the test statistic.
c.At 95% confidence, test the hypotheses.

Textbook 
Essentials of Statistics for Business and Economics

Essentials of Statistics for Business and Economics


Edition: 7th
Authors:
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ladwerladwer
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A year ago
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bioboy12 Author
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A year ago
This helped my grade so much Perfect
kaytee23
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Yesterday
Thanks for your help!!
ouasfoudgewu
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2 hours ago
Helped a lot
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