A bank manager finds from reviewing her records that the amount of money deposited on Saturday morning
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A bank manager finds from reviewing her records that the amount of money deposited on Saturday morning is normally distributed with a standard deviation of $150. A random sample of 7 customers reveals the following amounts deposited on Saturday morning:
$825 $972 $311 $1,212 $150 $1,800 $725
(a) Find a 95 % confidence interval for the mean amount of deposits by using the MINITAB program.
(b) Find a 90 % confidence interval for the mean amount of deposits by using MINITAB gain. Compare your answer to the confidence interval you computed in part (a). Which is larger?
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Related Book For
Statistics For Business And Financial Economics
ISBN: 9781461458975
3rd Edition
Authors: Cheng Few Lee , John C Lee , Alice C Lee
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