5 In the population of employees in your company, 35 percent contribute to the annual United...
| 5 | In the population of employees in your company, 35 percent contribute to the annual United Way campaign. You plan to take a sample of size n = 200 and calculate the sample proportion who contribute to United Way. | |||||||
| The expected value of the sample proportion is: | ||||||||
| a | 0.035 | |||||||
| b | 0.25 | |||||||
| c | 0.35 | |||||||
| d | 0.4 | |||||||
| 6 | In the previous question, the standard error of the sample proportion is: | |||||||
| a | 0.0473 | |||||||
| b | 0.0415 | |||||||
| c | 0.0398 | |||||||
| d | 0.0337 | |||||||
| 7 | In the previous question, 90 percent of sample proportions from samples of size n = 250 deviate from the population proportion of 0.35 by no more that ±____ (or ____ percentage points). | |||||||
| a | 0.034 | (3.4 percentage points.) | ||||||
| b | 0.04 | (4 percentage points.) | ||||||
| c | 0.044 | (4.4 percentage points.) | ||||||
| d | 0.05 | (5 percentage points.) | ||||||
| 8 | There is a population of 10 families in a small neighborhood. You plan to take a random sample of 4 families (without replacement). How many samples of size n = 4 are possible. | |||||||
| a | 40 | |||||||
| b | 80 | |||||||
| c | 210 | |||||||
| d | 400 | |||||||
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5
In the population
of employees in your company, 35 percent contribute to the annual
United...
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