For travel credit cards, use the logistic output there to (a) interpret the effect of income on the odds of possessing a travel credit card, and conduct (b) a significance test and (c) a confidence...

For travel credit cards, use the logistic output there to (a) interpret the effect of income on the odds of possessing a travel credit card, and conduct (b) a significance test and (c) a confidence interval for that effect.

For the snoring and heart disease data, with snoring-level scores (0, 2, 4, 5), the logistic regression ML fit is logit[Pˆ(Y = 1)] = −3.866 + 0.397x. Interpret the effect of snoring on the odds of heart disease.