A newspaper article about the results of a poll states: "In theory, the results of such a poll, in 99 cases out of 100 should differ by no more than 5 percentage points in either direction from what would have been obtained by interviewing all voters in the United States." Find the sample size suggested by this statement.

The sample size 'n' =15

Step-by-step explanation:

Explanation:-

given data A newspaper article about the results of a poll states: "In theory, the results of such a poll, in 99 cases out of 100

Sample proportion 'p' = 99/100 =0.99

Given Margin of error = 5% =0.05

The margin of error is determined by

The Z-score of 95% of level of significance

Cross multiplication, we get

Squaring on both sides, we get

n = 15.21

Final answer:-

Sample size 'n' = 15

step-by-step explanation: