Consider the following data drawn Independently from nor- mally distributed populations: X1 = 25.7 X2 = 30.6 of = 98.2 ož= 87.4 n,= 20 n2= 25 Construct the 95% confidence Interval for the difference between the populatlon means. b. Specify the competing hypotheses In order to determine whether or not the population means differ. c. Using the confidence Interval from part a, can you reject the null hypothesis? Explaln.

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A: n1 = 28n2 = 30 x1 = 24x2 = 22 s1 = 8s2 = 6

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.