Solution Manual for Statistical Methods for Psychology 8th Edition Howell 1111835489 9781111835484 Full download link at: Solution manual: https://testbankpack.com/p/solution-manual-for-statistical-methods-for-psychology-8th-editionhowell-1111835489-9781111835484/
Chapter 6 - Categorical Data and Chi-Square 6.1
Popularity of psychology professors: Anderson 32 22.3
Observed Expected
O E
Klatsky 25 22.3
Kamm 10 22.3
Total 67 67
2
2
E
32 22.3 25 22.3 10 22.3 2
22.3
2
22.3
2
22.3
= 11.331 Reject H0 and conclude that students do not enroll at random. 6.2
We cannot tell in Exercise 6.1 if students chose different sessions because of the instructor or because of the times at which the sections are taught—Instructor and Time are confounded. We would at least have to offer the sections at the same time.
6.3
Racial choice in dolls (Clark & Clark, 1939):
Observed Expected
1
Black 83 126
White 169 126
Total 252 252
The answers to these questions may differ substantially, depending on the number of decimal places that are carried for the calculations. (e. g. for Exercise 6.18 answers can vary between 37.14 and 37.339.)