A Survey Claims That 9 Out of 10 Doctors Recommend

question 53

Multiple Choice

A survey claims that 9 out of 10 doctors recommend aspirin for their patients with headaches.To test this claim against the alternative that the actual proportion of doctors who recommend aspirin is less than 0.90, a random sample of 100 doctors was selected. Suppose that the test statistic is - 2.20.Can you conclude that H₀ should be rejected at the (a) = 0.10, (b) = 0.05, and (c) = 0.01 level of Type I error?

• A)(a)yes; (b)yes; (c)yes
• B)(a)no; (b)no; (c)no
• C)(a)no; (b)no; (c)yes
• D)(a)yes; (b)yes; (c)no

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Definitions:

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People who are above a certain age, usually over 60 or 65, considered to be beyond the traditional age of retirement.

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