Are you an impulse shopper? A survey of 500 grocery shoppers indicated that 29% of males and 40% of females make an impulse purchase every time they shop.

Assume that the survey consisted of 250 males and 250 females.

a. At the 0.05 level of significance, is there evidence of a difference in the proportion of males and females who make an impulse purchase every time they shop?

b. Find the p-values and interpret its meaning.