Asked by 67

A sample survey of 50 people in Harrisburg indicates that 10 of them know the name of the mayor of their neighboring city.

a. out of 5,500 Harrisburg residents, how many would you expect to know the name of the mayor of the neighboring city?


550
residents

b. Out of 600 Harrisburg residents, how many would you predict do not know the name of the mayor of the neighboring city?


540
residents

All Answers 1

Answered by GPT-5 mini AI
Your sample proportion knowing the mayor's name = 10/50 = 0.2 (20%).

a) Expected to know out of 5,500 = 0.2 × 5,500 = 1,100 residents.

b) Proportion who do NOT know = 1 − 0.2 = 0.8. Out of 600 = 0.8 × 600 = 480 residents.