Bone mineral densities (mg/cm were measured on a sample of n 9 women (age 45 to

Question

Bone mineral densities (mg/cm were measured on a sample of n 9 women (age 45 to 65) with low bone mineral densities (BMD) who had been randomly selected and assigned to a treatment group that took the drug conjugated equine estrogen (CEE) for 3 years. CEE is used as a treatment for low bone density and investigators wanted to examine its effectiveness. The responses, rounded to the nearest integer, are reported in Table 1. Table 1: Bone Mineral Densities for women between 45 65 years old 1031 1032 1034 1013 1030 1024 1057 1006 1044 Assuming that this sample is representative of the entire population of women in this age group with low bone density, research clinicians would like e density levels that a 0.025

Explanation / Answer

D)point estimate for mean=1030.111

E)point estimate for std deviation= 15.194

F)test stat =1.0092

G) FTR, we can not conclude that ...............

X 1031 1032 1034 1013 1030 1024 1057 1006 1044 mean(X) 1030.111 std deviation(S) 15.194 std error =S/(n)1/2 5.065 t=(X-100)/std error 1.0092 p value 0.1712

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