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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) 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 = 0.10, (b) 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 = 0.05, and (c) 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 = 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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