PRACTICE OF STATISTICS F/AP EXAM
6th Edition
ISBN: 9781319113339
Author: Starnes
Publisher: MAC HIGHER
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Question
Chapter 8, Problem R8.9RE
a)
To determine
To explain: The condition required to construct the confidence interval using the t critical value rather than z .
a)
Expert Solution
Explanation of Solution
Z-distribution is used to compute the confidence interval for population mean when the value of the standard deviation is known. On the contrary, t -distribution is used to calculate the critical value when the sample standard deviation is known and the
b)
To determine
To explain: The effect the increase of degree of freedom on t critical value for a particular confidence level.
b)
Expert Solution
Explanation of Solution
One of the properties of the t -distribution is that, the increase in degree of freedom makes the t -distribution to approach the
Chapter 8 Solutions
PRACTICE OF STATISTICS F/AP EXAM
Ch. 8.1 - Prob. 1ECh. 8.1 - Prob. 2ECh. 8.1 - Prob. 3ECh. 8.1 - Prob. 4ECh. 8.1 - Prob. 5ECh. 8.1 - Prob. 6ECh. 8.1 - Prob. 7ECh. 8.1 - Prob. 8ECh. 8.1 - Prob. 9ECh. 8.1 - Prob. 10E
Ch. 8.1 - Prob. 11ECh. 8.1 - Prob. 12ECh. 8.1 - Prob. 13ECh. 8.1 - Prob. 14ECh. 8.1 - Prob. 15ECh. 8.1 - Prob. 16ECh. 8.1 - Prob. 17ECh. 8.1 - Prob. 18ECh. 8.1 - Prob. 19ECh. 8.1 - Prob. 20ECh. 8.1 - Prob. 21ECh. 8.1 - Prob. 22ECh. 8.1 - Prob. 23ECh. 8.1 - Prob. 24ECh. 8.1 - Prob. 25ECh. 8.1 - Prob. 26ECh. 8.1 - Prob. 27ECh. 8.1 - Prob. 28ECh. 8.2 - Prob. 29ECh. 8.2 - Prob. 30ECh. 8.2 - Prob. 31ECh. 8.2 - Prob. 32ECh. 8.2 - Prob. 33ECh. 8.2 - Prob. 34ECh. 8.2 - Prob. 35ECh. 8.2 - Prob. 36ECh. 8.2 - Prob. 37ECh. 8.2 - Prob. 38ECh. 8.2 - Prob. 39ECh. 8.2 - Prob. 40ECh. 8.2 - Prob. 41ECh. 8.2 - Prob. 42ECh. 8.2 - Prob. 43ECh. 8.2 - Prob. 44ECh. 8.2 - Prob. 45ECh. 8.2 - Prob. 46ECh. 8.2 - Prob. 47ECh. 8.2 - Prob. 48ECh. 8.2 - Prob. 49ECh. 8.2 - Prob. 50ECh. 8.2 - Prob. 51ECh. 8.2 - Prob. 52ECh. 8.2 - Prob. 53ECh. 8.2 - Prob. 54ECh. 8.2 - Prob. 55ECh. 8.2 - Prob. 56ECh. 8.2 - Prob. 57ECh. 8.2 - Prob. 58ECh. 8.2 - Prob. 59ECh. 8.2 - Prob. 60ECh. 8.3 - Prob. 61ECh. 8.3 - Prob. 62ECh. 8.3 - Prob. 63ECh. 8.3 - Prob. 64ECh. 8.3 - Prob. 65ECh. 8.3 - Prob. 66ECh. 8.3 - Prob. 67ECh. 8.3 - Prob. 68ECh. 8.3 - Prob. 69ECh. 8.3 - Prob. 70ECh. 8.3 - Prob. 71ECh. 8.3 - Prob. 72ECh. 8.3 - Prob. 73ECh. 8.3 - Prob. 74ECh. 8.3 - Prob. 75ECh. 8.3 - Prob. 76ECh. 8.3 - Prob. 77ECh. 8.3 - Prob. 78ECh. 8.3 - Prob. 79ECh. 8.3 - Prob. 80ECh. 8.3 - Prob. 81ECh. 8.3 - Prob. 82ECh. 8.3 - Prob. 83ECh. 8.3 - Prob. 84ECh. 8.3 - Prob. 85ECh. 8.3 - Prob. 86ECh. 8 - Prob. R8.1RECh. 8 - Prob. R8.2RECh. 8 - Prob. R8.3RECh. 8 - Prob. R8.4RECh. 8 - Prob. R8.5RECh. 8 - Prob. R8.6RECh. 8 - Prob. R8.7RECh. 8 - Prob. R8.8RECh. 8 - Prob. R8.9RECh. 8 - Prob. T8.1SPTCh. 8 - Prob. T8.2SPTCh. 8 - Prob. T8.3SPTCh. 8 - Prob. T8.4SPTCh. 8 - Prob. T8.5SPTCh. 8 - Prob. T8.6SPTCh. 8 - Prob. T8.7SPTCh. 8 - Prob. T8.8SPTCh. 8 - Prob. T8.9SPTCh. 8 - Prob. T8.10SPTCh. 8 - Prob. T8.11SPTCh. 8 - Prob. T8.12SPTCh. 8 - Prob. T8.13SPT
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