Question: The average service time at a Noodles Company restaurant
The average service time at a Noodles & Company restaurant was 3.5 minutes in the previous year. Noodles implemented some time-saving measures and would like to know if they have been effective. They sample 20 service times and find the sample average is 3.2 minutes with a sample standard deviation of .4 minute. Using α = .05, were the measures effective?
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