5. Each year, Mary & Belo, Ltd., sets up a gift- wrapping station to assist its customers with holiday shopping. Preliminary observations of one worker at the station produced the following sample time (in minutes per package): 3.5, 3.2, 4.1, 3.6, 3.9. Based on this small sample, what number of observations would be necessary to determine the true cycle time with a 95% confidence level and an accuracy of 5%?

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5. Each year, Mary & Belo, Ltd., sets up a gift- wrapping station to assist its customers with
holiday shopping. Preliminary observations of one worker at the station produced the
following sample time (in minutes per package): 3.5, 3.2, 4.1, 3.6, 3.9. Based on this small
sample, what number of observations would be necessary to determine the true cycle time
with a 95% confidence level and an accuracy of 5%?
Transcribed Image Text:5. Each year, Mary & Belo, Ltd., sets up a gift- wrapping station to assist its customers with holiday shopping. Preliminary observations of one worker at the station produced the following sample time (in minutes per package): 3.5, 3.2, 4.1, 3.6, 3.9. Based on this small sample, what number of observations would be necessary to determine the true cycle time with a 95% confidence level and an accuracy of 5%?
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