Loose Leaf for Statistical Techniques in Business and Economics
Loose Leaf for Statistical Techniques in Business and Economics
17th Edition
ISBN: 9781260152647
Author: Douglas A. Lind
Publisher: McGraw-Hill Education
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Chapter 16, Problem 4SR

a.

To determine

Find the number of usable pairs, in other words, the sample size, n.

b.

To determine

Determine whether the new procedures increased production.

c.

To determine

State the assumption that has been assumed about the distribution of difference in the production before and after redesign.

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Consider the following hypothesis test. The following results are for two independent samples taken from the two populations. Sample 1 Sample 2 n 1 = 80 n 2 = 70 x 1 = 104 x 2 = 106 σ 1 = 8.4 σ 2 = 7.6 What is the value of the test statistic? If required enter negative values as negative numbers (to 2 decimals). What is the p-value (to 4 decimals)? Use z-table. With  = .05, what is your hypothesis testing conclusion?
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Loose Leaf for Statistical Techniques in Business and Economics

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