PRACTICE OF STATISTICS F/AP EXAM
6th Edition
ISBN: 9781319113339
Author: Starnes
Publisher: MAC HIGHER
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Chapter 11, Problem R11.2RE
To determine
To explain why chi-square test is not appropriate for this setting.
Expert Solution & Answer
Answer to Problem R11.2RE
The condition of large counts is not satisfied so, could not use Chi-square test.
Explanation of Solution
Given:
| Count of correct answers | ||||||
| Zero | one | Two | Three | Four | ||
| Knowledge of teacher | Knowledgeable | 5 | 1 | 6 | 3 | 9 |
| Ignorant | 25 | 0 | 3 | 0 | 1 | |
The
| Zero | one | Two | Three | Four | Total | ||
| Knowledgeable | Observed | 5 | 1 | 6 | 3 | 9 | 24 |
| Expected | 13.58 | 0.45 | 4.08 | 1.36 | 4.53 | 24.00 | |
| Ignorant | Observed | 25 | 0 | 3 | 0 | 1 | 29 |
| Expected | 16.42 | 0.55 | 4.92 | 1.64 | 5.47 | 29.00 | |
| Total | Observed | 30 | 1 | 9 | 3 | 10 | 53 |
| Expected | 30.00 | 1.00 | 9.00 | 3.00 | 10.00 | 53.00 |
The expected values of some categories less than 5. Therefore, the condition of large counts is not satisfied. Hence, could not use Chi-square test.
Chapter 11 Solutions
PRACTICE OF STATISTICS F/AP EXAM
Ch. 11.1 - Prob. 1ECh. 11.1 - Prob. 2ECh. 11.1 - Prob. 3ECh. 11.1 - Prob. 4ECh. 11.1 - Prob. 5ECh. 11.1 - Prob. 6ECh. 11.1 - Prob. 7ECh. 11.1 - Prob. 8ECh. 11.1 - Prob. 9ECh. 11.1 - Prob. 10E
Ch. 11.1 - Prob. 11ECh. 11.1 - Prob. 12ECh. 11.1 - Prob. 13ECh. 11.1 - Prob. 14ECh. 11.1 - Prob. 15ECh. 11.1 - Prob. 16ECh. 11.1 - Prob. 17ECh. 11.1 - Prob. 18ECh. 11.1 - Prob. 19ECh. 11.1 - Prob. 20ECh. 11.1 - Prob. 21ECh. 11.1 - Prob. 22ECh. 11.1 - Prob. 23ECh. 11.1 - Prob. 24ECh. 11.1 - Prob. 25ECh. 11.1 - Prob. 26ECh. 11.2 - Prob. 27ECh. 11.2 - Prob. 28ECh. 11.2 - Prob. 29ECh. 11.2 - Prob. 30ECh. 11.2 - Prob. 31ECh. 11.2 - Prob. 32ECh. 11.2 - Prob. 33ECh. 11.2 - Prob. 34ECh. 11.2 - Prob. 35ECh. 11.2 - Prob. 36ECh. 11.2 - Prob. 37ECh. 11.2 - Prob. 38ECh. 11.2 - Prob. 39ECh. 11.2 - Prob. 40ECh. 11.2 - Prob. 41ECh. 11.2 - Prob. 42ECh. 11.2 - Prob. 43ECh. 11.2 - Prob. 44ECh. 11.2 - Prob. 45ECh. 11.2 - Prob. 46ECh. 11.2 - Prob. 47ECh. 11.2 - Prob. 48ECh. 11.2 - Prob. 49ECh. 11.2 - Prob. 50ECh. 11.2 - Prob. 51ECh. 11.2 - Prob. 52ECh. 11.2 - Prob. 53ECh. 11.2 - Prob. 54ECh. 11.2 - Prob. 55ECh. 11.2 - Prob. 56ECh. 11.2 - Prob. 57ECh. 11.2 - Prob. 58ECh. 11.2 - Prob. 59ECh. 11.2 - Prob. 60ECh. 11.2 - Prob. 61ECh. 11.2 - Prob. 62ECh. 11.2 - Prob. 63ECh. 11.2 - Prob. 64ECh. 11 - Prob. R11.1RECh. 11 - Prob. R11.2RECh. 11 - Prob. R11.3RECh. 11 - Prob. R11.4RECh. 11 - Prob. R11.5RECh. 11 - Prob. T11.1SPTCh. 11 - Prob. T11.2SPTCh. 11 - Prob. T11.3SPTCh. 11 - Prob. T11.4SPTCh. 11 - Prob. T11.5SPTCh. 11 - Prob. T11.6SPTCh. 11 - Prob. T11.7SPTCh. 11 - Prob. T11.8SPTCh. 11 - Prob. T11.9SPTCh. 11 - Prob. T11.10SPTCh. 11 - Prob. T11.11SPTCh. 11 - Prob. T11.12SPTCh. 11 - Prob. T11.13SPT
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