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# Your manager has collected some data regarding spare time of workers in minutes from a sample...

## Question

###### Your manager has collected some data regarding spare time of workers in minutes from a sample...

Your manager has collected some data regarding spare time of workers in minutes from a sample of 20 workers. The average spare time is 7 minutes with the sample standard deviation of 2 minutes 1. Construct the 90% confidence interval of spare time in the factory. 2. How confident are you that the average spare time is within the range that you found?

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