The NCHS report indicated that in 2010 the prevalence of teen smoking was 13.9%. A researcher gathered data on teen smok
Posted: Thu May 05, 2022 8:28 pm
The NCHS report indicated that in 2010 the prevalence of teen
smoking was 13.9%. A researcher gathered data on teen smoking from
the same year and found about 22.8% of his sample of teens (n=491)
smoked. Based on hypothesis testing to detect a difference between
the prevalence of smoking in this researcher's sample compared and
the NCHS prevalence, which one of the following statements is
correct? (Alpha level is set at 0.05.)
a. One should run a one-sample t test to answer this research
question.
b. A one-sample test of proportion cannot be conducted to answer
this research question, because the assumption, Min[np0, n(1-p0)]
equal to or greater than 5, is violated.
c.We fail to reject the null hypothesis at the alpha level of
.05.
d. The obtained test statistic value is 5.7.
smoking was 13.9%. A researcher gathered data on teen smoking from
the same year and found about 22.8% of his sample of teens (n=491)
smoked. Based on hypothesis testing to detect a difference between
the prevalence of smoking in this researcher's sample compared and
the NCHS prevalence, which one of the following statements is
correct? (Alpha level is set at 0.05.)
a. One should run a one-sample t test to answer this research
question.
b. A one-sample test of proportion cannot be conducted to answer
this research question, because the assumption, Min[np0, n(1-p0)]
equal to or greater than 5, is violated.
c.We fail to reject the null hypothesis at the alpha level of
.05.
d. The obtained test statistic value is 5.7.