A Random Sample of 45 Salespersons Were Asked How Long

question 51

Essay

A random sample of 45 salespersons were asked how long, on average, they were able to talk to a potential customer. Their answers revealed a mean of 8.5 minutes with a variance of 9 minutes. Construct a 95% confidence interval for , the time it takes an salesperson to talk to a potential customer.

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Definitions:

Prison Guard

A security officer who works in a prison and is responsible for the supervision, safety, and security of prisoners.

Parole Officer

A law enforcement agent who supervises offenders who have been released from prison on parole, ensuring they comply with parole conditions.

Wealth

An abundance of valuable material possessions or resources; the total of all assets owned by an individual or organization minus liabilities.

Saving

The act of preserving financial resources for future use, often through mechanisms like bank accounts, investments, or pension plans.