Title: A survey claims that 9 out of 10 doctors (i.e., 90%) recommend brand Z for their patients who have ... Post by: baileymeredith on Jan 8, 2020 A survey 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 = -1.95. Can we conclude that H0 should be rejected at the and level?
▸ a) no; b) no; c) no ▸ a) no; b) no; c) yes ▸ a) yes; b) yes; c) yes ▸ a) yes; b) yes; c) no Title: A survey claims that 9 out of 10 doctors (i.e., 90%) recommend brand Z for their patients who have ... Post by: jesika1122 on Jan 8, 2020 Content hidden
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