PRACTICE OF STATISTICS F/AP EXAM
6th Edition
ISBN: 9781319113339
Author: Starnes
Publisher: MAC HIGHER
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Question
Chapter 11.2, Problem 39E
To determine
To explain which treatment seems to be most effective and least effective.
Expert Solution & Answer
Answer to Problem 39E
Patch plus drug is most effective and Nicotine patch is least effective.
Explanation of Solution
Given:
| Successes | Failures | Total | ||
| Nicotine patch | Observed | 40 | 204 | 244 |
| Expected | 61.75 | 182.25 | 244.00 | |
| (O - E)² / E | 7.66 | 2.60 | 10.26 | |
| Drug | Observed | 74 | 170 | 244 |
| Expected | 61.75 | 182.25 | 244.00 | |
| (O - E)² / E | 2.43 | 0.82 | 3.25 | |
| Patch plus drug | Observed | 87 | 158 | 245 |
| Expected | 62.00 | 183.00 | 245.00 | |
| (O - E)² / E | 10.08 | 3.41 | 13.49 | |
| Placebo | Observed | 25 | 135 | 160 |
| Expected | 40.49 | 119.51 | 160.00 | |
| (O - E)² / E | 5.93 | 2.01 | 7.94 | |
| Total | Observed | 226 | 667 | 893 |
| Expected | 226.00 | 667.00 | 893.00 | |
| (O - E)² / E | 26.10 | 8.84 | 34.94 | |
| 34.94 | chi-square | |||
| 3 | df | |||
| 1.26E-07 | p-value |
Calculation:
The least effective treatment is Nicotine patch as expected frequency 61.75 is higher than the observed frequency 40. That is, expected frequency deviates most from the observed frequency. The most effective treatment is Patch plus drug as expected frequency 62 is lower than the observed frequency 87.
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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