A random sample of 1530 US adults ages 20 - 24 were surveyed about charitable acts. Of those 1530 people surveyed, 282 of them indicated that they had volunteered at least one time in the last year.

(a) Obtain a point estimate for the proportion of all US adults ages 20 - 24 that had volunteered at least one time in the last year. Round to three decimal places.

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(b) Using the information from part a, construct a 95% confidence interval for the proportion of all US adults ages 20 - 24 that had volunteered at least one time in the last year. Round lower bound and upper bound to three decimal places.

Lower Bound: Upper Bound: