(Answered) Two samples of 100 seedlings were grown with two different

Statistics

Two samples of 100 seedlings were grown with two different fertilizers. One sample had an average height of 10 inches and a standard deviation of 1 inch. The second sample had an average height of 10.5 inches and a standard deviation of 3 inches. Construct a confidence interval for the difference between the average population heights (pi - 142)

(a) At the 95% level of confidence.

(b) At the 90% level of confidence.

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