In an application to estimate the mean number of miles that downtown employees commute to work roundtrip each day,the following information is given: n = 20 = 4.33
S = 3.50
The point estimate for the true population mean is:
A)1.638
B)4.33 ± 1.638
C)4.33
D)3.50

Question

In an application to estimate the mean number of miles that downtown employees commute to work roundtrip each day,the following information is given: n = 20  = 4.33
S = 3.50
The point estimate for the true population mean is:
A)1.638 
B)4.33 ± 1.638 
C)4.33 
D)3.50

Quizplus · Accepted Answer

The point estimate for the true population mean is the sample mean, which is given as 4.33 in the given information. Therefore, the answer is C) 4.33.

Option A represents the value of the standard error, not the point estimate. Option B represents the confidence interval for the mean, but we are not given the level of confidence to calculate it. Option D represents the sample standard deviation, which is not the same as the sample mean.

In an Application to Estimate the Mean Number of Miles