Suppose a random sample of 197 accounts from a corporate credit card database revealed a sample average

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Suppose a random sample of 197 accounts from a corporate credit card database revealed a sample average balance of $2,325 with a standard deviation of $144. Use the sample information to develop a 95% confidence interval for the true population of all credit card balances for this corporate credit card.
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Business Statistics A Decision Making Approach

ISBN: 9780133021844

9th Edition

Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry

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