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The Standard Deviation of a Sample Is Estimated to Be

Question 116

Multiple Choice

The standard deviation of a sample is estimated to be 100 and the standard error has been calculated to be 5. What size of sample will the researcher need to ensure a 95.5% confidence interval (Z=2.00) ?


A) 400
B) 800
C) 1000
D) 10000

Correct Answer:

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