Bella has sampled the heights of 30 students at Ridgemont High and obtained a mean of 64.2 inches. He constructs a 90% confidenc

Question

3 years ago

5

Bella has sampled the heights of 30 students at Ridgemont High and obtained a mean of 64.2 inches. He constructs a 90% confidenc

e interval, which turns out to be (61.0, 67.4). What is the ma
A) 2.1 inches

B) 3.2 inches

C) 4.2 inches

D) 6.4 inches rgin of error?

Mathematics

1 answer:

barxatty [35] · Answer 1 · 2021-11-13T04:59:50+03:00

The correct answer for the question that is being presented above is this one: "C) 4.2 inches." Bella has sampled the heights of 30 students at Ridgemont High and obtained a mean of 64.2 inches. He constructs a 90% confidence interval, which turns out to be (61.0, 67.4). The margin of error is C) 4.2 inches