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2) The following information is obtained from two independent samples selected from two normally distributed populations. n1=18,1=7.82,1=2.35 n2=15,2=5.99,2=3.17 Round to 3 decimals (a) What is

2) The following information is obtained from two independent samples selected from two normally distributed populations.

n1=18,1=7.82,1=2.35

n2=15,2=5.99,2=3.17

Round to 3 decimals

(a)What is the point estimate of12?

(b)Construct a 99% confidence interval for12. Find the margin of error for this estimate.

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