Use the Following Sample Sizes and Numbers of Successes for the Next

question 31

Essay

Use the following sample sizes and numbers of successes for the next six questions.
Medical researchers reviewing the risk of death for elderly patients taking
dementia drugs found the following data. Assume a .05 significance level for
testing the claim that the proportions are not equal. Also, assume the two simple
random samples are independent and that the conditions are
satisfied.
-Test the given claim using the traditional or P-value method for hypothesis testing about two proportions. Identify the null hypothesis and alternative hypothesis, state a conclusion about the null hypothesis, and state a final conclusion that addresses the original claim.

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Definitions:

Migraine Headaches

A type of headache characterized by intense, throbbing pain usually on one side of the head, often accompanied by nausea, vomiting, and sensitivity to light and sound.

Narrowing

The process of reducing or limiting the scope or breadth of something.

Expansion

The process of increasing in size, volume, quantity, or scope.

Very Sleepy

A state of experiencing extreme tiredness or drowsiness, often implying a need for rest or sleep.