H0: p=0.9 Ha: p≠0.9 1) We know that the sample size is 1,429. For what sample...

H0: p=0.9

Ha: p≠0.9

1) We know that the sample size is 1,429. For what sample proportion would the p-value be equal

to 0.01? Assume that all conditions necessary for inference are satisfied.

2) 400 students were randomly sampled from a large university, and 239 said they did not get

enough sleep. Conduct a hypothesis test to check whether this represents a statistically

significant difference from 50%, and use a significance level of 0.01.

3) Given the same situation above (n = 400, p-hat = 239/400) set up a confidence interval at the

95% confidence level.

4) Use the confidence interval you found in part (3) above to conduct a hypothesis test on ‘Do

less than half of college students get enough slee

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orchestra answered 1 year ago

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