Twelve different video games showing drug use were observed. The duration times

Question

Twelve different video games showing drug use were observed. The duration times of drug use were? recorded, with the times? (seconds) listed below. Assume that these sample data are used with a 0.10 significance level in a test of the claim that the population mean is greater than 75 sec. If we want to construct a confidence interval to be used for testing that? claim, what confidence level should be used for a confidence? interval? If the confidence interval is found to be 19.3 sec < mu < 198.5 ?sec, what should we conclude about the? claim?

617

The confidence level should be ____%

617

The confidence level should be ____%

Explanation / Answer

Solution:-

The confidence level should be 90%.

The confidence interval is found to be 19.3 sec < mu < 198.5.

Since confidence interval contains value less than 75, hence we do not have sufficient evidence in the favor of the claim that the population mean is greater than 75 sec.

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