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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 = 25.7 x¯2x¯2 = 30.6
σ12 = 98.2 σ22 = 87.4
n1 = 20 n2 = 25

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.)

Confidence interval is to
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