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# Vacation Days If the average number of vacation days for a selection of various ISBN: 9780073534978 253

## Solution for problem 9 Chapter 3-3

Elementary Statistics: A Step by Step Approach | 7th Edition

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Problem 9

Vacation Days If the average number of vacation days for a selection of various countries has a mean of 29.4 days and a standard deviation of 8.6, find the z scores for the average number of vacation days in each of these countries. Canada 26 days Italy 42 days United States 13 days

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STA 4202/5125/5206 Solution for Assignment # 1 Solution to Problem #1 (A) Assume equal variance; small sample sizes H 0 μ1– μ2= 0 H A μ1– μ2≠ 0 (two-sided) Pooled sample variance: (n1− 1 s 1 n − 2 s ) 2 (10 − 1 19.5 + 12 − 1 12.5 175.5 + 137.5 Sp = = = = 15.65...

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##### ISBN: 9780073534978

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