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.

Question

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.

Quizplus · Accepted Answer

The Answer of 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.

A Random Sample of 45 Salespersons Were Asked How Long