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Music streaming services are the most popular way to listen to music. Data gathered over the...

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Statistics

Music streaming services are the most popular way to listen tomusic. Data gathered over the last 12 months show Apple Music wasused by an average of 1.71 million households with a samplestandard deviation of 0.57 million family units. Over the same 12months Spotify was used by an average of 2.24 million families witha sample standard deviation of 0.31 million. Assume the populationstandard deviations are not the same.

Using a significance level of 0.10, test the hypothesis of nodifference in the mean number of households picking eitherservice

a)Find the degrees of freedom for unequal variance test.(Round down your answer to nearest wholenumber.)

b)State the decision rule for 0.10 significance level:H0: μApple =μSpotify; H1:μApple ≠ μSpotify.(Negative amounts should be indicated by a minus sign.Round your answers to 3 decimal places.)

c)Compute the value of the test statistic. (Negativeamount should be indicated by a minus sign. Round your answer to 3decimal places.)

d)Test the hypothesis of no difference in the mean number ofhouseholds picking either variety of service to download songs.

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