business statistics
posted by Samantta .
why the use of calculators and/or computer programs is good or bad for students taking Business statistics?

They're bad unless the students understand the basic math behind their calculations and the computer programs. They're good if the students do understand the principles and concepts and use them as laborsaving devices.

Daily Gross Receipts. Suppose that the daily gross receipts from a certain sales unit maybe treated as a Normally distributed random variable with mean = $15,000 and standard deviation = $3,250. Use Table A for this problem.
(a) Find the proportion of such receipts on a certain day that are more than $13,750.
(i) Provide the zscore corresponding to the above statement
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