The drug Lipitor is meant to reduce cholesterol and LDL cholesterol. In clinical trials, 19 out of 863 patients taking 10 mg of Lipitor daily complained of flulike symptoms. Suppose that it is known that 1.9% patients taking competing drugs complain of flulike symptoms. a) ) Determine the P-value for this hypothesis test, and draw a normal curve with an area representing the P-value shaded. (e) Interpret the P-value.    (f) Based on the P-value, what is the conclusion of the hypothesis test? Assume an α = 0.05 level of significance.

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.