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A Random Sample of 45 Salespersons Were Asked How Long

Question 51

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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 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. , the time it takes an salesperson to talk to a potential customer.

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blured image 8.5 blured image 1.96 (3)/ blured image = 8...

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