Suppose the probability that Barry Bonds, a famous baseball player, gets a hit in a given at bat is p = 0.3. If Barry has 400 at bats in a single season (sample of 400 independent at bats), what is the mean and standard error of the sampling distribution p-hat (the sample proportion of hits per at bat)? a) mean = 0.3, standard error = 0.0011 b) mean = 0.3, standard error = 0.0229 c) mean = 0.7, standard error = 0.0011 d) mean = 0.7, standard error = 0.0229 41. Suppose the p-value for a test is .02. Which of the following is true? a) We will not reject H0 at alpha = .05 b) We will reject H0 at alpha = .01 c) We will reject H0 at alpha = 0.05 d) We will reject H0 at alpha equals 0.01, 0.05, and 0.10 e) None of the above is true.
Suppose the probability that Barry Bonds, a famous baseball player, gets a hit in a given at bat is p = 0.3. If Barry has 400 at bats in a single season (sample of 400 independent at bats), what is the
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a) mean = 0.3, standard error = 0.0011
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b) mean = 0.3, standard error = 0.0229
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c) mean = 0.7, standard error = 0.0011
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d) mean = 0.7, standard error = 0.0229
41. Suppose the p-value for a test is .02. Which of the following is true?
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a) We will not reject H0 at alpha = .05
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b) We will reject H0 at alpha = .01
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c) We will reject H0 at alpha = 0.05
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d) We will reject H0 at alpha equals 0.01, 0.05, and 0.10
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e) None of the above is true.
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