Answer
2.9146
Work Step by Step
$ t = \frac{34.9 - 31.6}{ \sqrt {6.9^{2}/76 + 6.2^{2}/76}} = \frac{3.3}{47.61/76 + 38.44/76}$
$= \frac{3.3}{1.1322} = 2.9146$
Statistics (12th Edition)
by McClave, James T.; Sincich, Terry T.
Published by
Pearson
ISBN 10:
0321755936
ISBN 13:
978-0-32175-593-3
Chapter 9 - Inferences Based on Two Samples - Exercises 9.30 - 9.50 - Applying the Concepts - Basic - Page 436: 9.38c
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