Mathematics, 12.03.2021 16:00 aubriebv2020
The marketing manager for an automobile manufacturer is interested in determining the proportion of new compact-car owners who would have purchased a side curtain air bag if it had been available for an additional cost of $300. The manager believes from previous information that the population proportion is 0.30 (Pl). Suppose that a survey of 200 new compact-car owners is selected and 80 indicate that they would have purchased the side curtain air bags. If you were to conduct a test to determine whether there is evidence that the proportion is different from 0.30, what will be your test statistic(Zstat value?
a. 3.086
b. -4.103
c. 2.897
d. -1.258
Answers: 2
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