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03-02-2020
Mathematics

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An auto manufacturer wants to estimate the annual income of owners of a particular model of automobile. A random sample of 200 current owners is selected. The population standard deviation is known. Which Excel function would NOT be appropriate to use to construct a confidence interval estimate? a. NORM.S.INV b. COUNTIF C. STDEV d. AVERAGE

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aliakbar921853 aliakbar921853

04-02-2020

Answer: b. COUNTIF

Step-by-step explanation:

The rest functions all employ techniques to construct a confidence interval estimate while COUNTIF function is just used to count the cells for a particular criterion.

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