Q26.

Shoppers were asked about their regular grocery shopping locations. The table below shows the responses of the sampled shoppers. We are interested in determining if the proportions of females in the three categories are different from each other. (10 points)

Gender

Grocery chain

Discount store

Membership warehouse

Total

Female

230

80

100

410

Male

80

50

60

190

Total

310

130

160

600

a.

Provide the null and alternative hypotheses (2 points).

b.

Determine the expected frequencies (2 points).

c.

Compute the sample proportions (2 points).

d.

Show your results (2 points).

e.

State your conclusion (2 points).

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