Q.9 - The Practice of Statistics for AP

Question

A telephone poll of an SRS of 1234 adults found that 62% are generally satisfied with their lives. The announced margin of error for the poll was 3%. Does the margin of

 error account for the fact that some adults do not have telephones?

(a) Yes. The margin of error includes all sources of error in the poll.

(b) Yes. Taking an SRS eliminates any possible bias in estimating the population proportion.

(c) Yes. The margin of error includes under coverage but not nonresponse.

(d) No. The margin of error includes nonresponse but is not under coverage.

(e) No. The margin of error only includes sampling variability.

Step-by-Step Solution

Answer

(e) No. The margin of error only includes sampling variability.

step 1: introduction

It is realized that the records that the margin of error catches the testing error.

step 2: explanation

As the sample size is $1234$and margin of error is $3\%$the determination of grown-ups that don't claim telephones is a choice predisposition, not an examining error. While choice predisposition is not an examining error. In this way, the margin of error does exclude the way that a couple of grown-ups don't possess telephones.