A company claims that 9 out of 10 doctors (i.e., 90%) recommend its brand of cough syrup to their patients. To test this claim against the alternative that the actual proportion is less than 90%, a random sample of 100 doctors was chosen which resulted in 94 who indicate that they recommend this cough syrup. The test statistic in this problem is approximately:
A) 1.67
B) 1.33
C) -1.33
D) 1.83

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The Answer of A company claims that 9 out of 10 doctors (i.e., 90%) recommend its brand of cough syrup to their patients. To test this claim against the alternative that the actual proportion is less than 90%, a random sample of 100 doctors was chosen which resulted in 94 who indicate that they recommend this cough syrup. The test statistic in this problem is approximately:
A) 1.67
B) 1.33
C) -1.33
D) 1.83

A Company Claims That 9 Out of 10 Doctors (I