Shoppers were asked where they do their regular grocery shopping. 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.

a. Provide the null and the alternative hypotheses.
Ho = P1 = P2 = P3
Ha =
b. Determine the expected frequencies.
c. Compute the sample proportions.
d. Compute the critical values (CVij).
e. Give your conclusions by providing numerical reasoning.

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Membership Warehouse Gender Discount Total Grocery Chain Store 230 Female 410 80 100 190 Male 50 60 160 310 130 Total 600