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Part A Would you explain what p represents in this hypotheses:
H0:p=.02
H1:p>.02
Also state if it is a parameter or a statistic.
Part B The director of an advertising agency is concerned with the effectiveness of a television
commercial. What null hypothesis is she testing if she commits a type I error when she
erroneously says that the commercial is effective.
state both the null and alternative hypotheses and describe in words what would be a type II
error for this advertising study
Solution
i think p is a proportion. parameter is a property of population, statistic of a sample.
i think p is a parameter. type I error = rejecting true null hypothesis. => null hypothesis is
commercial not effective. type II error = failure to reject false null hypothesis. => in this case,
declaring commercial to be ineffective even when it is. H0: commercial not effective H1:
commercial effective.

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Part A Would you explain what p represents in this hypotheses H0.pdf

  • 1. Part A Would you explain what p represents in this hypotheses: H0:p=.02 H1:p>.02 Also state if it is a parameter or a statistic. Part B The director of an advertising agency is concerned with the effectiveness of a television commercial. What null hypothesis is she testing if she commits a type I error when she erroneously says that the commercial is effective. state both the null and alternative hypotheses and describe in words what would be a type II error for this advertising study Solution i think p is a proportion. parameter is a property of population, statistic of a sample. i think p is a parameter. type I error = rejecting true null hypothesis. => null hypothesis is commercial not effective. type II error = failure to reject false null hypothesis. => in this case, declaring commercial to be ineffective even when it is. H0: commercial not effective H1: commercial effective.