Solution-A new grug had a potency advertised at 75 given the

Assignment Help Basic Statistics

A new grug had a potency advertised at 75%. Given the following smaple data:

N=25
X bar = 76.6%
S=1%

a) Check manufacturer's claim of 775% potency at alpha = .05 (one tail)

b) Make a 90% confidence interval.

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