Mathematics, 15.04.2021 15:50, lilyella06
recent random survey of 1,000 Americans asked them what they would do with an unexpected tax return. 470 of them indicated they would use it to pay down debt. Calculate a 90% confidence interval for the proportion of all people who would use an unexpected tax refund to pay debt. 1. Calculate p-tilde, the initial estimate for the proportion of people who would pay down debt. Use five decimals for accuracy. 470/1000=0.47000 (471)/(1002)=0.47006 (472)/(1004)=0.47012
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