100BHW1 - (2 Interpret the confidence level of 95(so that...

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STAT 100B HWI Due Friday 5pm MS 8971 Problem 1: Suppose in a population of voters, the proportion of those who support a candidate is p . Suppose we get a random sample of 1000 people, and within this sample, the number of people who support this candidate is 530. (1) Calculate the 95% confidence interval for p . Calculate the margin of error.
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Unformatted text preview: (2) Interpret the confidence level of 95% (so that your roommate can understand you). Problem 2: Continue from Problem 1. Suppose we want to test the hypotheses: H : p = . 5 versus H 1 : p > . 5. (1) Calculate the p-value. (2) Suppose the significance level is 2 . 5%. Should we reject H ? 1...
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