Confidence Intervals; In a survey of 1004 individuals, 442 felt that Randolph spent too much time away. Find a 95% confidence interval for the true population proportion

Answer 1

Use a proportional confidence interval formula:

CI95 = p + or - (1.96)(√pq/n)

Note: + or - 1.96 represents 95% confidence interval.

For p in your problem: 442/1004
For q: 1 - p
n = 1004

Be sure to convert all fractions to decimals. It's easier to work with decimals in the formula.

I let you take it from here to calculate the interval.