SOLUTION: Test the claim that the mean time between uses of a TV remote control by adults during commercials is not greater than 5.0 seconds. The standard deviation is known and equal 2.5 se
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Question 423007: Test the claim that the mean time between uses of a TV remote control by adults during commercials is not greater than 5.0 seconds. The standard deviation is known and equal 2.5 seconds.
The mean of a SRS sample of size n=650 was measured and found to be 5.25 seconds. Use significance level of 0.01.
You can put this solution on YOUR website! Test the claim that the mean time between uses of a TV remote control by adults during commercials is not greater than 5.0 seconds.
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Ho: u <= 5 seconds (claim)
Ha: u > 5 seconds
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The standard deviation is known and equal 2.5 seconds.
The mean of a SRS sample of size n=650 was measured and found to be 5.25 seconds. Use significance level of 0.01.
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t(5.25) = (5.25-5)/[2.5/sqrt(650)] = 2.5495
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p-value = P(t <= 2.5495 when df = 649) = 0.9945
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That p-value is enormous; since it's greater than 1%
fail to reject Ho.
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Cheers,
Stan H.
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