Q 99

Shown below is 3 x 2 contingency table with observed values from a sample of 1,500. At 95% confidence, test for independence of the row and column factors.

Q 100

Shown below is 2 x 3 contingency table with observed values from a sample of 500. At 95% confidence using the critical value approach, test for independence of the row and column factors.

Q 101

A sample of 150 individuals (males and females) was surveyed, and the individuals were asked to indicate their yearly incomes. Their incomes were categorized as follows.
The results of the survey are shown below.
We want to determine if yearly income is independent of gender.
a.Compute the test statistic.
b.Using the p-value approach, test to determine if yearly income is independent of gender.