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Chapter 11: Q.117 (page 668)
Let
Decision: ________
Conclusion (write out in a complete sentence.): ________
Decision: Do not reject the null hypothesis
Conclusion: There is sufficient evidence to insure that the variance is no more than
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In general, if the observed values and expected values of a goodness-of-fit test are not close together, then the test statistic can get very large and on a graph will be way out in the right tail.
An ice cream maker performs a nationwide survey about favorite flavors of ice cream in different geographic areas of the U.S. Based on the Table, do the numbers suggest that geographic location is independent of favorite ice cream flavors? Test at the significance level.
Use the following information to answer the next seven exercises: Transit Railroads is interested in the relationship between travel distance and the ticket class purchased. A random sample of \(200\) passengers is taken. Table 11.31 shows the results.
The railroad wants to know if a passenger鈥檚 choice in ticket class is independent of the distance they must travel.
What is the \(p-\)value?
Transit Railroads is interested in the relationship between travel distance and the ticket class purchased. A random sample of passengers is taken. Table 11.31 shows the results. The railroad wants to know if a passenger鈥檚 choice in ticket class is independent of the distance they must travel.
State the hypothesis:
:
:
A sample of commercial businesses was surveyed for recycling one commodity; a commodity here means any one type of recyclable material such as plastic or aluminum. Table shows the business categories in the survey, the sample size of each category, and the number of businesses in each category that recycle one commodity. Based on the study, on average half of the businesses were expected to be recycling one commodity. As a result, the last column shows the expected number of businesses in each category that recycle one commodity. At the % significance level, perform a hypothesis test to determine if the observed number of businesses that recycle one commodity follows the uniform distribution of the expected values.
| Business Type | Number in class | Observed Number that recycles one commodity | Expected number that recycles one commodity |
| office | |||
| Retail/ Wholesale | |||
| Food/ Restaurants | |||
| Manufacturing/ Medical | |||
| Hotel/Mixed |
Table 11.41
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