Essen.Of Stat. for Behavioral Sci. - Access
8th Edition
ISBN: 9781285592480
Author: GRAVETTER
Publisher: CENGAGE L
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Textbook Question
Chapter 15.2, Problem 3LC
A researcher has developed three different designs for a computer keyboard. A sample of n = 60 participants is obtained, and each individual tests all three keyboards and identifies his or her favorite. The frequency distribution of preferences is as follows:
| Design A | Design B | Design C | |
| 23 | 12 | 25 | n = 60 |
- a. What is the df value for the chi-square statistic?
- b. Assuming that the null hypothesis states that there are no preferences among the three designs, find the expected frequencies for the chi-square test.
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A researcher has developed three different designs for a computer keyboard. A sample of n=60 participants is obtained, and each individual tests all three keyboards and identifies his or her favorite. The frequency distribution of the preferences is as follows: DESIGN A DESIGN B DESIGN C n=60 23 12 25a. What is the df value for the chi-square statistic?b. Assuming that the null hypothesis states that there are no preferences among thethree designs, find the expected frequencies for the chi-square test
A researcher has developed three different designs for a computer keyboard. A sample of n=60 participants is obtained, and each individual tests all three keyboards and identifies his or her favorite. The frequency distribution of the preferences is as follows:
n=60
Design A
Design B
Design C
23
12
25
Assuming that the null hypothesis states that there are no preferences among thethree designs, find the expected frequencies for the chi-square test.
A researcher has developed three different designs for a computer keyboard. A sample of n=60 participants is obtained, and each individual tests all three keyboards and identifies his or her favorite. The frequency distribution of the preferences is as follows:
n=60
Design A
Design B
Design C
23
12
25
What is the df value for the chi-square statistic?
Chapter 15 Solutions
Essen.Of Stat. for Behavioral Sci. - Access
Ch. 15.2 - For a chi-square test, the expected frequencies...Ch. 15.2 - Prob. 2LCCh. 15.2 - A researcher has developed three different designs...Ch. 15.3 - A researcher would like to know which factors are...Ch. 15.5 - 1. A researcher completes a chi-square test for...Ch. 15.5 - Prob. 2LCCh. 15 - Prob. 1PCh. 15 - Gven, Elaimis, Binokay, and Tan (2003) studied the...Ch. 15 - Prob. 3PCh. 15 - Data from the department of motor vehicles...
Ch. 15 - Research has demonstrated that people tend to be...Ch. 15 - Suppose that the researcher from the previous...Ch. 15 - Prob. 7PCh. 15 - Automobile insurance is much more expensive for...Ch. 15 - The color red is often associated with anger and...Ch. 15 - Research suggests that romantic background music...Ch. 15 - Mulvihill, Obuseh and Caldwell (2008) conducted a...Ch. 15 - Research has demonstrated strong gender...Ch. 15 - Prob. 13PCh. 15 - Prob. 14PCh. 15 - Prob. 15PCh. 15 - Prob. 16PCh. 15 - Research results suggest that IQ scores for boys...Ch. 15 - Gender differences in dream content are well...Ch. 15 - In a study similar to one conducted by Fallon and...Ch. 15 - A recent study indicates that people tend to...Ch. 15 - Research indicates that people who volunteer to...Ch. 15 - Although the phenomenon is not well understood, it...Ch. 15 - For the following scores. X Y 7 6 9 6 6 3 12 5 9 6...Ch. 15 - For the following data: X Y 1 2 4 7 3 5 2 1 5 14 3...Ch. 15 - A developmental psychologist would like to...Ch. 15 - A communications company has developed three new...
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