# Test of Hypothesis using chi-squared test of independence

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A random sample of 100 adults as recently gathered in order to explore a possible relationship between alcohol consumption and high blood pressure. The results are provided in the contingency table below. Your job is to determine if drinking status is independent of high blood pressure.

High Blood Pressure Status

Absent Present Total

Non drinker 26 11 37

Light to moderate 16 29 45

Heavy drinker 13 15 18

Total 55 45 100

a. Define the null alternative hypothesis.

b. Define the alternate hypothesis.

c. Let a = 0.05. Determine the rejection region.

d. Compute the test statistic.

e. What is the conclusion?

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##### Solution Summary

The solution tests the hypothesis that drinking status is independent of high blood pressure using chi-squared test of independence.

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