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9th Edition

David R. Anderson + 4 others

Publisher: South-Western College Pub

ISBN: 9780357045435

Chapter 10.1, Problem 1E

Textbook Problem

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The following results come from two independent random samples taken of two populations.

- What is the point estimate of the difference between the two population means?
- Provide a 90% confidence interval for the difference between the two population means.
- Provide a 95% confidence interval for the difference between the two population means.

**a.**

To determine

Find the point estimate of the difference between the two population means.

**Calculation:**

The results from two independent random samples drawn from two populations are as follows:

Sample 1 | Sample 2 |

**b.**

To determine

Find the 90% confidence interval for the difference between two population means.

**c.**

To determine

Find the 95% confidence interval for the difference between two population means.

Essentials Of Statistics For Business & Economics

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