Mathematics, 28.02.2020 01:22 animegirl02

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The playing time of 16 popular songs is found to have a standard deviation of 54.5 seconds. Use a 0.05 significance level to test the claim that the songs are from a population with a standard deviation less than one minute (60 seconds.) State the initial and final conclusion.
a. Fail to reject the null hypothesis; there is NOT sufficient evidence to support the claim that the songs are from a population with a standard deviation less than one minute.
b. Reject the null hypothesis; there is NOT sufficient evidence to support the claim that the songs are from a population with a standard deviation less than one minute.
c. Fail to reject the null hypothesis; there is sufficient evidence to support the claim that the songs from a population with a standard deviation less than one minute.
d. Reject the null hypothesis; there is sufficient evidence to warrant rejection of the claim that the songs from a population with a standard deviation less than one minute.

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