The table provides estimates of the probability of using the coupon in the Simmons Stores catalog promotion. A different value is obtained for each combination of values for the independent variables.

	Annual Spending
$1,000	$2,000	$3,000	$4,000	$5,000	$6,000	$7,000
Credit Card	Yes	0.3307	0.4102	0.4948	0.5796	0.6599	0.732	0.7936
No	0.1414	0.1881	0.246	0.3148	0.3927	0.4765	0.5617

These values were obtained from a logistic regression equation where

x1	=	annual spending at Simmons Stores ($1,000s)
x2	=	0 if the customer does not have a Simmons credit card 1 if the customer has a Simmons credit card
y	=	0 if the customer did not use the coupon 1 if the customer used the coupon.

(a)Compute the odds in favor of using the coupon for a customer with annual spending of $5,000who does not have a Simmons credit card

(x₁=5,x₂= 0).

(b)Use the information in the table and in part (a) to compute the odds ratio for the Simmons credit card variable

x₂= 0,

holding annual spending constant at

x₁=5.

(c)The odds ratio for the Simmons credit card variable computed using the information in the $2,000 column of the table was 3.00. Did you get the same value for the odds ratio in part (b)?