Posted by **Katie** on Sunday, November 24, 2013 at 9:14am.

Many dairy cows now receive injections of BST, a hormone intended to spur greater milk production. A group of 53 Jersey cows increased average milk production from 43 to 52 pounds per day, with a standard deviation of 4.8 lbs.

Is this evidence that the hormone maybe effective in this breed of cattle? Assume the assumptions/conditions have been met.

What is the average increase in milk production in lbs for the 52 Jersey cows? Round to one decimal

What is the p-value is . (round to 4 decimal places).

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