A musicologist wishes to determine if playing classical music makes cows produce more milk Suppose previous research has

Question

A musicologist wishes to determine if playing classical music makes cows produce more milk Suppose previous research has established that the average daily milk production for cows is 22 liters The researcher therefore decides to test the hypotheses Ho 22 vs H 22 where average milk production when listening to classical music To do so the researcher has played classical music recordings to 10 000 cows at randomly selected dairy farms The mean production for these cows is X 22 006 and the p value for the significance test is 0 0002 What statement below best describes the appropriate conclusion to draw from this study There is not enough evidence to suggest that playing classical music increases cow s milk productivity Although the researcher has obtained a statistically significant result it appears to have little practical significance Since the P value is greater than the reciprocal of the sample size this is not a significant result

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