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A Sample Mean Is Compared Against a Standard for a Large

Question 20

Multiple Choice

A sample mean is compared against a standard for a large sample.Now,assume the sample mean was found to equal 40.What is the appropriate confidence interval? (Note: Round to the nearest whole number. )


A) 23 < m < 57
B) Can't be determined from the information given.
C) 14 < m < 66
D) 38 < m < 42
E) 20 < m < 60

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