Stats Homework Assignment #7 complete solutions correct answers key
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Stats Homework Assignment #7 complete solutions correct answers key
Problem set 1: Use the following data to answer questions 1-2 (10 points):
Consider the following hypothetical data on each respondent’s region of U.S. residence and whether or not they have health insurance of some kind.
Person
Region
Health Insurance
1
South
Yes
2
South
Yes
3
North
No
4
North
No
5
North
Yes
6
North
Yes
7
North
Yes
8
South
No
9
South
No
10
South
No
11
North
Yes
12
North
Yes
13
North
No
14
North
No
15
South
No
1. Use these data to construct a bivariate table, with cells containing the appropriate frequencies (5 pts)?
Region
Health Insurance?
South
North
Row Marginal
Yes
No
Column Marginal
2. Construct a bivariate table containing the appropriate percentages for each cell in the table (5 pts)?
Region
Health Insurance?
South
North
Yes
No
100%
100%
Problem set 2: use the following information to answer questions 3-5 (25 points total):
The following data were obtained from the General Social Survey.
Religious Affiliation
Position on Abortion
Protestant
Catholic
Support
156
86
Oppose
296
139
3. Identify the independent variable (5 pts).
4. Calculate the marginal for the table below (10 pts)?
Religious Affiliation
Row Marginal
Position on Abortion
Protestant
Catholic
Support
156
86
Oppose
296
139
Column Marginal
5. Calculate the appropriate percentages for each cell using the conventions introduced in Chapter 10 (10 pts).
Religious Affiliation
Position on Abortion
Protestant
Catholic
Row Marginal
Support
Oppose
Column Marginal
Problem set 3: use the following information to answer questions 6-8 (25 points total):
Hypothetical data are provided below on relationship between sex and marital satisfaction.
Sex
Marital Satisfaction
Male
Female
Row Marginal
Satisfied
309
255
564
Unsatisfied
107
278
385
Column Marginal
416
533
949
6. Calculate the expected frequencies – that is, the frequencies were would expect to observe if there were no relationship between sex and marital satisfaction (8 pts).
Sex
Marital Satisfaction
Male
Female
Row Marginal
Satisfied
564
Unsatisfied
385
Column Marginal
416
533
949
7. Calculate the number of degrees of freedom associated with the chi-square test for these data (2 pts).
8. Calculate the chi-square values (10 pts)
Cell (X,Y)
Fo
Fe
(Fo-Fe)
(Fo-Fe)2
[(Fo-Fe) 2 / Fe]
Male/Satisfied
309
Male/unsatisfied
107
Female/satisfied
255
Female/unsatisfieed
278
9. Suppose you obtain a chi-square statistic of 67.81. Are your results statistically significant if the critical value obtained from the distribution of chi-square is 3.84 with an alpha level of .05 (5 pts)?
Problem set 4: use the following information to answer questions 10-11 (20 points total):
The issue of how much should be spend to solve particular U.S. social problems is a complex matter, and people have diverse and conflicting ideas on these issues. Race and social class have an impact on how people perceive the extent of government spending. The 2006GSS contains sev3eral questions on these topics. For this exercise, we present race and the variable NATFARE, which whether we were spending too much, too little, or the right amount of money to address welfare.
Race of Respondent
Spending on Welfare
White
Black
Hispanic
Total
Too little
128
41
21
190
About right
197
32
21
250
Too much
185
31
19
235
Total
510
104
61
675
10. How many degrees of freedom for the table (5 pts)?
11. Test whether race and NATFARE are independent (alpha level of .05). what do you conclude (15 pts)?
RACE/Welfare Spending
/
White/Too little
128
White/About right
197
White/Too much
185
Black/Too little
41
Black/About right
32
Black/Too much
31
Hispanic/Too little
21
Hispanic/About right
21
Hispanic/Too much
19
Problem set 5: use the following information to answer questions 12-15 (20 points total):
We continue our analysis from previous problem set, this time examing the relationship between social class (CLASS) and spending on welfare (NATFARE).
Social Class
Spending on Welfare
Lower Class
Working Class
Middle Class
Upper Class
Total
Too little
23
92
76
8
199
About right
12
113
133
10
268
Too much
12
127
99
7
245
Total
47
332
308
25
712
12. What is the number of degrees of freedom for this table (5 pts)?
13. Calculate the chi-square (10 pts).
Social Class/Welfare Spending
/
Lower/Too little
23
Lower/About right
12
Lower/Too much
12
Working/Too little
92
Working/About right
113
Working/Too much
127
Middle/Too little
76
Middle/About right
133
Middle/Too much
99
Upper/Too little
8
Upper/About right
10
Upper/Too much
7
14. Based on an alpha of .01, do you reject the null hypothesis (3 pts)?
15. Explain the reason for your answer (2 pts).
[Solved] Stats Homework Assignment #7 complete solutions correct answers key
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- Submitted On 27 Apr, 2016 11:35:44
- Vpqnrqhwk
- Rating : 40
- Grade : A+
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Stats Homework Assignment #7 complete solutions correct answers key
Stats Homework Assignment #6 complete solutions correct answers key
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