Null and Alternative Hypotheses · Exercise 12
Over the past few decades, public health officials have examined the link between weight concerns and teen girls' smoking. Researchers surveyed a group of 273 randomly selected teen girls living in Massachusetts (between 12 and 15 years old). After four years the girls were surveyed again. Sixty-three said they smoked to stay thin. Is there good evidence that more than 30% of the teen girls smoke to stay thin? The alternative hypothesis is:
(a) p < 0.30
(b) p ≤ 0.30
(c) p ≥ 0.30
(d) p > 0.30
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Introductory Statistics 2e · §9.1 Null and Alternative Hypotheses · Exercise 12
No hints for this one.
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