35.8k views
2 votes
From a sample size of 169, it was determined that the 68% confidence interval for the population mean is (505, 517). Therefore, the sample mean was ___. and the margin of error was ___.

A. 511; 6
B. 511; 12
C. 513; 6
D. 513; 12



From a sample size of 169, it was determined that the 68% confidence interval for-example-1

1 Answer

4 votes

Answer:

A. 511; 6

Explanation:

The margin of error would be
\pm(517-505)/(2)=\pm(12)/(2)=\pm 6

The sample mean would be
505+6=511 (or
517-6=511)

User Museful
by
4.9k points