Multiple Choice
Exhibit 21-3
From a population of size 600, a simple random sample of size 58 is selected. The sample mean is 400, and the sample standard deviation is 40.
-Refer to Exhibit 21-3. An approximate 95% confidence interval for the population mean is
A) 395 to 405
B) 380 to 420
C) 360 to 440
D) 390 to 410
Correct Answer:
Verified
Correct Answer:
Verified
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