The data in the contingency table to the right count the number of male and female shoppers who accept or reject a discounted offer in return for supplying a retailer with an email address. Consider using these data to test the null hypothesis that gender and acceptance are independent (H0). (a) Find the degrees of freedom of χ2. (b) Find the expected number of women who reject if H0 holds. (c) Find the value of χ2 for testing H0. (d) Find the p-value for testing H0. Male Female Accept 55 45 Reject 45 55
The data in the contingency table to the right count the number of male and female shoppers who accept or reject a discounted offer in return for supplying a retailer with an email address. Consider using these data to test the null hypothesis that gender and acceptance are independent
(H0).
(a) Find the degrees of freedom of
χ2.
(b) Find the expected number of women who reject if
H0
holds.
(c) Find the value of
χ2
for testing
H0.
(d) Find the p-value for testing
H0.
Male
Female
Accept
55
45
Reject
45
55
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