Cigarettes 2009. In 1999, the Centers for Disease Controland Prevention estimated that about 34.8% of high schoolstudents smoked cigarettes. They established a nationalhealth goal of reducing that figure to 16% by the year2010. To that end, they would be on track if they achieveda reduction to 17.7% by 2009. In 2009, they released aresearch study in which 19.5% of a random sample of5080 high school students said they were current smokers.Is this evidence that progress toward the goal is off track?a) Write appropriate hypotheses.b) Verify that the appropriate assumptions are satisfied.c) Find the P-value of this test.d) Explain what the P-value means in this context.e) State an appropriate conclusion.f) Of course, your conclusion may be incorrect. If so,which kind of error did you commit?
Cigarettes 2009. In 1999, the Centers for Disease Control
and Prevention estimated that about 34.8% of high school
students smoked cigarettes. They established a national
health goal of reducing that figure to 16% by the year
2010. To that end, they would be on track if they achieved
a reduction to 17.7% by 2009. In 2009, they released a
research study in which 19.5% of a random sample of
5080 high school students said they were current smokers.
Is this evidence that progress toward the goal is off track?
a) Write appropriate hypotheses.
b) Verify that the appropriate assumptions are satisfied.
c) Find the P-value of this test.
d) Explain what the P-value means in this context.
e) State an appropriate conclusion.
f) Of course, your conclusion may be incorrect. If so,
which kind of error did you commit?
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