Confidence interval-means of the two populations

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Reference no: EM1312507

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

Reference no: EM1312507

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