Question

Recent research published by Frumin and colleagues (2011) in the journal Scienceaddresses whether females' tears have an effect on males. Imagine that exposure to tears lowered self-rated sexual arousal by 1.27 points, with a margin of error of 0.32 points. The interval estimate is:

A. 1.27.
B. +/– 0.32.
C. [0.95, 1.59].
D. 0.32.Page 2

Answer 1

Answer: Option C. [0.95, 1.59].

Explanation:

We know that the mean is:

M = 1.27

and the margin of error is:

e = 0.32

This means that the actual value can be at a maximum distance of 0.32 from the mean.

then the interval will be:

[M - e, M + e].= [1.27 - 0.32, 1.27 + 0.32].= [0.95, 1.59].

The correct option is C.