Answer
$t_c = 1.833$
Work Step by Step
$d. f. = n - 1 = 10 - 1 = 9$
See the $t_c$ value on Table 5 (Appendix B) for d.f. = 9 and c = 0.90:
- It is: 1.833
$t_c = 1.833$
Elementary Statistics: Picturing the World (6th Edition)
by Larson, Ron; Farber, Betsy
Published by
Pearson
ISBN 10:
0321911210
ISBN 13:
978-0-32191-121-6
Chapter 6 - Confidence Intervals - Section 6.2 Confidence Intervals for the Mean - Exercises - Page 315: 1
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