Minimum simple size the researcher needs to use

Reference no: EM13939691

A researcher is interested in studying people's mean age in a certain region. If the population standard deviation is known to be 8 years and 1.5 year of error margin is allowed, find the minimum simple size the researcher needs to use, knowing that he is going to conduct his study using 95% confidence level.
Sample Size = 77
Sample Size = 25
Sample Size = 210
Sample Size = 110

Reference no: EM13939691

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