Use the following information to answer questions (10) - (12) . A researcher is wondering whether the smoking habits of young adults (18-25 years of age) in a certain city in the U.S. are the same as the proportion of the general population of young adults in the U.S. A recent study stated that the proportion of young adults who reported smoking at least twice a week or more in the last month was 0.16. The researcher collected data from a random
sample of 75 adults in the city of interest.
- [Objective: Test a hypothesis for a population proportion] A researcher completes a hypothesis test with a
resulting p-value = 0.076. Choose the best statement to interpret the results
A) The p-value for a two-sided test is divided by 2 resulting in a value less than a standard cutoff value of supporting the hypothesis that the city of interest has a different proportion of smokers than the general public.
B) The standard cutoff value of is multiplied by two for a two-sided test and the resulting value of 0.10 is greater than the p-value. Therefore there is no evidence to support that the city of interest has a different proportion of smokers than the general public.
C) The p-value is above a standard cutoff value of and therefore there is insufficient evidence to support that the city of interest has a different proportion of smokers than the general public.
D) The p-value is above a standard cutoff value of and therefore there is sufficient evidence to support that the city of interest has a different proportion of smokers than the general public.
Correct Answer:
Verified
Q41: [Objective: Understand the p-value] From the TI-84
Q42: Use the following information to answer questions
Q43: From the TI-84 graphing calculator screenshots below,
Q44: [Objective: Test a hypothesis for a population
Q45: [Objective: Understand the components of hypothesis testing]
Q47: Use the following information to answer questions
Q48: A polling agency is interested in testing
Q49: [Objective: Understand the p-value] A quality control
Q50: [Objective: Interpret the parts of the hypothesis
Q51: [Objective: Understand the hypothesis test of proportions
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