Let p be the population proportion for the situation. (a) Find point estimates of p and q, (b) construct 90% and 95% confidence intervals for p, and (

postillan4 2021-06-23 Answered
Let p be the population proportion for the situation. (a) Find point estimates of p and q, (b) construct 90% and 95% confidence intervals for p, and (c) interpret the results of part (b) and compare the widths of the confidence intervals. In a survey of 1035 U.S. adults, 745 say they want the U.S. to play a leading or major role in global affairs.
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BleabyinfibiaG
Answered 2021-06-24 Author has 118 answers
(a)p=0.7198,q=0.2802
(b)90% confidence interval: (0.6968, 0.7428)
95% confidence interval: (0.6924, 0.7472)
(c)The 95% confidence interval is wider than the 90% confidence interval.
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I have determined the answer to Q
1), which I believe is e).
For question 2), I have been told the CI= estimator +/- (table value)(Standard error). The estimator is 0.48, and I have found the SE to be 0.05. However, I am unsure about how to calculate the "table value".