Mathematics, 03.12.2019 07:32

# Asurvey claims that 9 out of 10 doctors (i. e., 90%) recommend brand z for their patients who have

children. to test this claim against the alternative that the actual proportion of doctors who recommend

brand z is less than 90%, a random sample of doctors was taken. suppose the test statistic is z= - 2.23.

can we conclude that he should be rejected at the a) a = 0.10, b) a = 0.05, and c) a = 0.01 level?

o a. a) no; b) no; c) no

ob. a) yes; b) yes; c) yes

oc. a) no; b) no; c) yes

od. a) yes; b) yes; c) no

click to select your answer

Answers: 3

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