A survey conducted by CBS News asked 1,026 respondents: “What

A survey conducted by CBS News asked 1,026 respondents: “What would you do with an unexpected tax refund?” The responses are summarized in the following table.,Response Frequency,Pay of debts……………………. 482,Put it in the bank……………… 308,Spend it………………………. 112,I never get a refund…………… 103,Other………………………….. 21,a. Construct the 90% confidence interval for the population proportion of those who would put the tax refund in the bank.,b. Construct the 90% confidence interval for the population proportion of those who never get a refund.