A survey of Ohio University students was conducted to determine if there was a p
ID: 3244868 • Letter: A
Question
A survey of Ohio University students was conducted to determine if there was a particular 'Green' that was desired by students to live on. A sample of 120 students responses are reproduced below. Do students prefer a particular 'Green'? Use critical value = 5.99. What are the expected values? What is the calculated chi-squared value? Was there a significant preference for where students live? A. Yes B. No A local sports bar wanted to determine whether Ohio University students prefer a particular type of food in their establishment. A sample of 100 students responses are reproduced below. Do students prefer a particular type of bar food? Use critical value = 7.82. What are the expected values? What is the calculated chi-squared value? Was there a significant preference for what students eat in a sports bar? A. Yes B. No The following data comes from "The Impact of AIDS on Gender Differences in Willingness to Engage in Casual Sex" by Russell Clark, Journal of Applied Social Psychology Vol. 20, No.9, pp.771-782. In this study researchers were interested in gender differences in willingness to engage in casual sex. Both males and females were approached by opposite sex confederates and asked one of the three questions: "I have been noticing you around campus. I find you to be very attractive." Then the confederate asked one of these three questions: "Would you go out with me tonight?" "Would you come over to my apartment tonight?"Explanation / Answer
Answer:
Q1).
West green
40
South Green
40
east Green
40
Q2).
Goodness of Fit Test
observed
expected
O - E
(O - E)² / E
40
40.000
0.000
0.000
20
40.000
-20.000
10.000
60
40.000
20.000
10.000
Total
120
120.000
0.000
20.000
20.00
chi-square
2
df
Chi square value = 20.0
Q3).
Yes.
Calculated chi square 20 > 5.99 the critical value. There is significant preference.
Q4).
Natchos
25
Pizza
25
Chicken wings
25
cheese stiks
25
Q5).
Goodness of Fit Test
observed
expected
O - E
(O - E)² / E
30
25.000
5.000
1.000
20
25.000
-5.000
1.000
35
25.000
10.000
4.000
15
25.000
-10.000
4.000
Total
100
100.000
0.000
10.000
10.00
chi-square
3
df
Chi square value = 10.0
Q6).
Yes.
Calculated chi square 10 > 7.82 the critical value. There is significant preference.
West green
40
South Green
40
east Green
40
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