Mathematics, 15.11.2019 22:31 chem1014

Atelevision sports commentator wants to estimate the proportion of citizens who "follow professional football."
(a) what sample size should be obtained if he wants to be within 2 percentage points with 94% confidence if he uses an estimate of 48% obtained from a poll? the sample size (round up to the nearest integer.)
(b) what sample size should be obtained if he wants to be within 2 percentage points with 94% confidence if he does not use any prior estimates? the sample size is (round up to the nearest integer.)

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Atelevision sports commentator wants to estimate the proportion of citizens who "follow professional...