A poll of 1,190 adults found that 476 felt economic problems were the most pressing of those facing the country. The sample proportion who expressed that opinion is:
A) unknown, because only information on 1,190 people is known.
B) unknown until the confidence level is decided.
C) 2.50.
D) 0.40.
E) 0.60.

Question

Quizplus · Accepted Answer

The proportion of adults in the sample who felt that economic problems were the most pressing is calculated by dividing the number of adults who felt that way (476) by the total sample size (1,190): 476/1190 = 0.40. Therefore, the sample proportion is 0.40, which corresponds to choice D.

A Poll of 1,190 Adults Found That 476 Felt Economic