Chapter 11: Q.43 (page 657)
A math teacher wants to see if two of her classes have the same distribution of test scores. What test should she use?
A math teacher will use a test of Homogeneity.
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The marital status distribution of the U.S. male population, ages and older, is as shown in Table 11.35.
| Martial Status | Percent | Frequency |
| never married | 31.3 | |
| married | 56.1 | |
| widowed | 2.5 | |
| divorced /separated | 10.1 |
A psychologist is interested in testing whether there is a difference in the distribution of personality types for business majors and social science majors. The results of the study are shown in Table. Conduct a test of homogeneity. Test at a level of significance.
The manager of "Frenchies" is concerned that patrons are not consistently receiving the same amount of French fries with each order. The chef claims that the standard deviation for a ten-ounce order of fries is at most oz., but the manager thinks that it may be higher. He randomly weighs orders of fries, which yields a mean of oz. and a standard deviation of two oz.
The mean and the median of the chi-square distribution are the same if .
Read the statement and decide whether it is true or false:
In a goodness-of-fit test, the expected values are the values we would expect if the null hypothesis were true.
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