Review the following output from a chi-square test, and answer the questions below. Chi-Square Test Frequencies:Preference...
Review the following output from a chi-square test, and answer the questions below. Chi-Square Test Frequencies:Preference
|
Observed N |
Expected N |
Residual |
|
|
Nuts & Grits |
9 |
20.0 |
-11.0 |
|
Bacon Surprise |
27 |
20.0 |
7.0 |
|
Dimples |
16 |
20.0 |
-4.0 |
|
Froggy |
17 |
20.0 |
-3.0 |
|
Chocolate Delight |
31 |
20.0 |
11.0 |
|
Total |
100 |
Test Statistics
|
Preference |
|
|
Chi-Square |
15.800a |
|
df |
4 |
|
Asymp. Sig. |
.003 |
a 0 cells (0.0%) have expected frequencies less than 5. The minimum expected cell frequency is 20.0. Answer the following questions about this chi-square output. What is the expected N size? What is the chi-square value? How many degrees of freedom are there? What it the test statistic and what does it tell you about the probability?
Homework Answers
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Review the following output from a chi-square
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Technology
Next we will use StatCrunch to calculate the expected
counts:
Enter Yes and No in column var1.
Enter the observed counts as they appear in the table above
(not including the totals) into columns var2 and var3.
Rename: var1 as "911", var2 as "No Risk" and var3 as "M to S
Risk"
Choose Stat -> Tables -> Contingency -> with
summary
Select the...
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4. Perform a chi-square test to look at the relationship between
region of country (REGION) and financial comfort (FCOMFORT). Using
alpha = .05, what would you conclude from your test:
a. Financial comfort differs depending on the area one lives
in.
b. People living in less expensive areas are more likely to
report that they are financially comfortable.
c. There is not a significant relationship between region and
financial comfort.
d. People living in the northeast region are most likely...
Cross-Tabulation and Chi-Square Test Respondents were asked to assess their current health condition and to report their social class. Data is in the table below Social Class Middle- and Upper Lower- and Working- Class Respondents Tetal Health Status Class Respondents Fair/Poor 220 136 Excellent/Good 472 521 Total 1. What is the independent variable? What is its level of measurement (nominal, ordinal, ratio)? What is the dependent variable? What is its level of measurement (nominal, ordinal, ratio)? 2. Use the frequencies...
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Does the data meet the conditions for the chi-square test?
StatCrunch Instructions: Test of Independence Using
Technology
Next we will use StatCrunch to calculate the expected
counts:
Enter Yes and No in column var1.
Enter the observed counts as they appear in the table above
(not including the totals) into columns var2 and var3.
Rename: var1 as "911", var2 as "No Risk" and var3 as "M to S
Risk"
Choose Stat -> Tables -> Contingency -> with
summary
Select the...
5. The chi-square test for goodness of fit - No difference from a known population Aa Aa Suppose you are reading a study conducted in the year 2000 about welfare recipients in the United States. The authors report the following frequency data on the household size of the 2,352 welfare recipients in their random sample: Observed Frequencies Household Size 5-or-more-person 4-person 3-person 2-person 1-person 282 753 588 400 329 You wonder if welfare recipients tend to live in different-sized households...
5. Interpretation of a chi-square test for goodness of fit Suppose you are reading a study conducted in the year 2000 about welfare recipients in the United States. The study consisted of a random sample of 199 welfare recipients, and provides summary statistics about various demographic characteristics of the sample, indluding household size broken down into five categories (one, two, three, four, and five or more persons in the household). You wonder if welfare recipients tend to live in different-...
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