Question
In a sample of 50 transactions for a pet store, it is found that on average the purchase total was $76.80 with a standard deviation
In a sample of 50 transactions for a pet store, it is found that on average the purchase total was $76.80 with a standard deviation of $14.20.
What is the sample size required to give a margin of error of at most $2.25 for a 99% confidence interval? Answer as a whole number. USE EXCEL to calculate your answer
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Numerical Algebra Matrix Theory Differential Algebraic Equations And Control Theory
Authors: Peter Benner, Matthias Bollhöfer, Daniel Kressner, Christian Mehl, Tatjana Stykel
1st Edition
3319152602, 9783319152608
