Constructing the confidence interval

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Reference no: EM132399760

Given two independent random samples with the following results:

n1=7

x‾1=175

s1=18

n1=7

x‾1=175

s1=18

n2=6

x‾2=145

s2=32

n2=6

x‾2=145

s2=32

Use this data to find the 80% confidence interval for the true difference between the population means. Assume that the population variances are equal and that the two populations are normally distributed.

Step 1 of 3: Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places

Step 2 of 3: Find the standard error of the sampling distribution to be used in constructing the confidence interval. Round your answer to the nearest whole number.

Step 3 of 3: Construct the 80%  confidence interval. Round your answers to the nearest whole number.

Reference no: EM132399760

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