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A random sample of 49 salespersons were asked how long on average they were able to talk to a potential customer. Their answers revealed a
A random sample of 49 salespersons were asked how long on average they were able to talk to a potential customer. Their answers revealed a mean of 8.800000000 with a variance of 6 minutes. Construct a 95% confidence interval for the time it takes a salesperson to talk to a potential customer.
LCL = 7.514142872, UCL = 8.785857128 | ||
LCL = 8.114142872, UCL = 9.485857128 | ||
LCL = 8.614142872, UCL = 11.08585713 | ||
LCL = 7.614142872, UCL = 10.98585713 | ||
LCL = 8.714142872, UCL = 10.58585713 |
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