A local bank needs information concerning the savings account balances ofits customers. A random sample of 15 accounts was checked. The meanbalance was $686.75 with a standard deviation of $256.20. Find a 98%confidence interval for the true mean. Assume that the account balances arenormally distributed.LowerRound to hundredths if necessary. Do notinclude a dollar sign in your answer.Upper =Round to hundredths if necessary. Do notinclude a dollar sign in your answer.

We have given that, Sample mean (x̄) = 686.75, standard deviation (s) = 256.20 and sample size (n)…

Answered: A local bank needs information…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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