The Following Data,drawn from a Normal Population,is the Waiting Time

question 70

Essay

The following data,drawn from a normal population,is the waiting time (in minutes)of 12 randomly selected customers at a travel desk.
1.8,2.4,2.7,2.1,1.3,1.7,1.5,1.5,2.3,2.8,2.5,1.9
A)Calculate the point estimates of the population variance and the population standard deviation.
B)Compute a 90% confidence interval for the population variance and the population standard deviation.

• A)Calculate the point estimates of the population variance and the population standard deviation.
• B)Compute a 90% confidence interval for the population variance and the population standard deviation.

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Definitions:

File Types

Categories of digital files, determined by their formats, that dictate how data is stored, displayed, and used.

Customer Section

A part of an accounting or sales software where information related to clients, such as transactions and contact details, is stored.

Receive Payments

The act of accepting monetary transactions from clients as compensation for provided services or products sold.

QBB File

A backup file format used by QuickBooks software to create secure copies of all accounting data, essential for data recovery and maintaining the integrity of financial records.