# Based on data collected in 2010, 23 percent of women wanted to buy a Google Android smart phone or tablet.

## Question:

(a) Might the comparison between these two samples be confounded with a hidden factor? If so, identify such a factor.

(b) Find the 95% confidence interval for the difference between the proportion of men and the proportion women interested in buying an Android device.

(c) What are the implications of the confidence interval for sales executives at Google?

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## Step by Step Answer:

**Related Book For**

## Statistics For Business Decision Making And Analysis

**ISBN:** 9780321890269

2nd Edition

**Authors:** Robert Stine, Dean Foster

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