Test the following claim determine the null hypothesis, Ask an Expert

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Test the following claim. Determine the null hypothesis, alternative hypothesis, test statistic, critical value, conclusion regarding the null hypothesis, and final conclusion which adress the original claim.

A manual states that in order to be a hit, a song should be no longer that three minutes and thirty seconds (or 210 seconds). A simple random sample of 50 current hit songs resluts in mean length of 252.5 sec. Suppose the population standard deviation of song length is 54.5 sec. Employ a 0.01 significance level to test the claim that the sample is from population of songs with a mean greater than 210 sec. What do these results consider about the advice given in the manual?

Determine the value of the test statistic?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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