A Random Sample of Size 15 Is Taken from a Normally

question 79

Multiple Choice

A random sample of size 15 is taken from a normally distributed population with a sample mean of 75 and a sample variance of 25.The upper limit of a 95% confidence interval for the population mean is equal to:

• A)77.530
• B)72.231
• C)74.727
• D)79.273

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Definitions:

Oral

Relating to the mouth or spoken rather than written communication.

Rectal

Pertaining to or involving the rectum, which is the final section of the large intestine, terminating at the anus.

Pulse Pressure

Difference between the systolic and diastolic measurements.

Systolic Reading

The top number in a blood pressure measurement, indicating the pressure in the arteries when the heart beats.