Question

In: Statistics and Probability

Consider the following data drawn independently from normally distributed populations: (You may find it useful to...

Consider the following data drawn independently from normally distributed populations: (You may find it useful to reference the appropriate table: z table or t table)

  x−1x−1 = 23.1   x−2x−2 = 24.7
σ12 = 96.3 σ22 = 93.1
n1 = 33 n2 = 34


a. Construct the 95% confidence interval for the difference between the population means. (Negative values should be indicated by a minus sign. Round all intermediate calculations to at least 4 decimal places and final answers to 2 decimal places.)
  

Solutions

Expert Solution

The statistical software output for this problem is :

a)

The 95% CI is :

-6.26 to 3.06

orchestra answered 2 years ago
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