Chapter 11: Q.73 (page 659)
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 |
Data does not fit the distribution.
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p-value = ________
What is the test statistic?
A company packages apples by weight. One of the weight grades is Class apples. Class apples have a mean weight of , and there is a maximum allowed weight tolerance of above or below the mean for apples in the same consumer package. A batch of apples is selected to be included in a Classapple package. Given the following apple weights of the batch, does the fruit comply with the Class grade weight tolerance requirements. Conduct an appropriate hypothesis test.
(a) at the significance level
(b) at the significance level Weights in selected apple batch (in grams): ; ; ; ;; ; ; ; 157 ; 171; 152; 161 ; 141; 166; 172;
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
Use the following information to answer the next nine exercise: The following data are real. the cumulative number of AIDS cases reported for Santa Clary Country is broken down by ethnicity as in table 11.29
The percentage of each ethnic group in Santa Clary Country is as in Table shown below
:------
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