What sample size will now be necessary

Reference no: EM131405365

A consultant conducts a pilot study to estimate a population standard deviation, then determines how large a simple random sample will be necessary to have a given level of confidence that the difference between and will be within the maximum error specified by her client.

The necessary sample size has been calculated as n = 100. If the client suddenly decides that the maximum error must be only one-fourth that originally specified, what sample size will now be necessary?

Reference no: EM131405365

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