Author Question: A survey found that 79 of a random sample of 1024 American adults approved of stronger laws to ... (Read 105 times)

lidoalex · **on:** Jul 25, 2018

A survey found that 79 of a random sample of 1024 American adults approved of stronger laws to reduce greenhouse gas emissions. Find the margin of error for the 90 confidence interval used to estimate the population proportion.

Give your answer as a percentage.
A) 2.49 B) 5.43 C) 2.09 D) 21.4 E) 4.56

Question 2

When 330 college students are randomly selected and surveyed, it is found that 119 own a car. Find a 99 confidence interval for the proportion of all college students who own a car.

A) 0.309 to 0.412 B) 0.299 to 0.422 C) 0.293 to 0.429 D) 0.317 to 0.404