Question

The table below gives beverage preferences for random samples of teens and adults.

Beverage	Teens	Adults	Total
Coffee	50	200	250
Tea	100	150	250
Soft Drink	200	200	400
Other	25	75	100
Total	375	625	1,000

We are asked to test for independence between age (i.e., adult and teen) and drink preferences.

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Refer to Exhibit 11-5. The result of the test is that the

Question 11 options:

	hypothesis of independence can be rejected
	hypothesis of independence cannot be rejected
	test is inconclusive
	None of these alternatives is correct.

Answer 1

The statistical software output for this problem is:

Contingency table results:

	Teens	Adults	Total
Coffee	50	200	250
Tea	100	150	250
Soft Drink	200	200	400
Other	25	75	100
Total	375	625	1000

Chi-Square test:

Statistic	DF	Value	P-value
Chi-square	3	66.666667	<0.0001

Hence,

The result of this test is that hypothesis of independence can be rejected.

Option A is correct.