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In: Statistics and Probability

A dentist is interested in obtaining information about delinquent (past due) accounts. Since the practice opened...

A dentist is interested in obtaining information about delinquent (past due) accounts. Since the practice opened 5 years ago, delinquent accounts are normally distributed with an average of 59 days and a variance of 169.00 days. The dentist randomly selected a sample of 31 delinquent accounts with an average of 47 days.

a) The dentist wants to know what average number of days is more than 42% from the past 5 years.

b) Is the average days from the sample of 31 more than the 42% average from the past 5 years?

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orchestra answered 2 years ago
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