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A Random Sample from an Unknown Population Had a Sample

Question 63

Multiple Choice

A random sample from an unknown population had a sample standard deviation of zero. Which one of the following is a reasonable conclusion?


A) The sample range must be zero.
B) An error was made in computing the sample standard deviation. It must always be greater than zero.
C) The population standard deviation must be zero.
D) The population standard deviation must be zero when the mean is zero.
E) None of these.

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