ral contraceptive use, Part II. Suppose that the study were repeated in a different inner-city neighborhood and that out of 50 randomly sampled 18-year-old women, 6 reported that they were taking birth control pills. The researchers would like to assess the evidence that the proportion of 18-year-old women using birth control pills in this neighborhood is greater than the national average of 5%. (a) Can the normal approximation to the binomial distribution be used to conduct a hypothesis test of the null hypothesis that the proportion of women using birth control pills in this neighborhood is equal to 0.05? Explain your answer. (b) State the hypotheses for the analysis of interest and compute the p-value. (c) Interpret the results from part (b) in the context of the data.
Oral contraceptive use, Part II. Suppose that the study were repeated in a different inner-city neighborhood and that out of 50 randomly sampled 18-year-old women, 6 reported that they were taking birth control pills. The researchers would like to assess the evidence that the proportion of 18-year-old women using birth control pills in this neighborhood is greater than the national average of 5%.
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(a) Can the normal approximation to the binomial distribution be used to conduct a hypothesis test of the null hypothesis that the proportion of women using birth control pills in this neighborhood is equal to 0.05? Explain your answer.
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(b) State the hypotheses for the analysis of interest and compute the p-value.
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(c) Interpret the results from part (b) in the context of the data.
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