Question

A newspaper provided a​ "snapshot" illustrating poll results from 1910 professionals who interview job applicants. The illustration showed that​ 26% of them said the biggest interview turnoff is that the applicant did not make an effort to learn about the job or the company. The margin of error was given as plus or minus 3±3 percentage points. What important feature of the poll was​ omitted? Choose the correct answer. The point estimate The confidence interval The sample size The confidence level

Choose the correct answer.

The point estimate

The confidence interval

The sample size

The confidence level

Answer 1

Solution:

From the above given information we know following things:

Sample size = 1910

Point estimate = 0.26

Confidence interval is within 3% margin of error of the point estimate. Hence, confidence interval is,

(0.26 - 0.03, 0.26 + 0.03) = (0.23, 0.29)

But we don't know at what confidence level the margin of error is computed. It means confidence level is omitted.

The important feature of the poll which was omitted is the confidence level.

Please rate the answer. Thank you.