AnswersCA-Statistics and Probability BIntroduction to Hypothesis Testing

Introduction to Hypothesis Testing Answers

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1
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The P-value of this test is approximately 0. Interpret this P-value.

A
There is approximately a 0% probability that it rains on any given day in Seattle.
B
Assuming the true proportion of rainy days is p = 0.99, there is about a 0% probability of getting a sample proportion of 0.92 or less by chance in a random sample of 50 days.
C
Assuming that the true proportion of rainy days is p < 0.99, there is about a 0% probability of getting a sample proportion of 0.99 or less by chance in a random sample of 50 days.
D
There is approximately a 0% probability that it will not rain on any given day in Seattle.
2
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The P-value of this test is approximately 0. What decision should be made at the α = 0.05 level?

A
Because 0 < 0.05 we reject H0.
B
Because 0 < 0.05 we fail to reject H0.
C
Because 0 < 0.05 we reject Ha.
D
Because 0 < 0.05 we fail to reject Ha.

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