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Talha M. (BITS Pilani) helped with1. A doctor is trying to determine whether her patients prefer a male nurse or a female nurse. After asking 25 male patients, 18 said they would prefer a female nurse. Apply the six steps of hypothesis testing.
2. In a randomized clinical trial, 50 individuals are assigned a new drug and 50 are assigned a placebo to assess whether age is balanced out between the two groups we evaluate whether the mean age is similar or not between the two groups. Suppose n1=25, x1=49.3 and s 2/1=10.97. n2=25 x2=50.83 and s2/2=11.13. apply the six steps of hypothesis testing.