### Confidence interval-means of the two populations

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Confidence interval for the difference between the means of the two populations

Salary information for a random sample of male and female employees of a large company is shown below.

 Male Female Sample Size 64 36 Sample Mean Salary (in \$1,000) 44 41 Sample Variance 128 72

A) The point estimate of the difference between the means of the two populations is

B) The standard error for the difference between the two means is

C) The 95% confidence interval for the difference between the means of the two populations is

a. 0 to 6.92

b. -2 to 2

c. -1.96 to 1.96

d. -0.92 to 6.92

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