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The waiting time for customers at the Burger Restaurant follows a normal distribution with a population mean of 3 minute
Posted: Wed Dec 08, 2021 5:03 am
by answerhappygod
- The Waiting Time For Customers At The Burger Restaurant Follows A Normal Distribution With A Population Mean Of 3 Minute 1 (25.74 KiB) Viewed 72 times
The waiting time for customers at the Burger Restaurant follows a normal distribution with a population mean of 3 minutes and a standard deviation of 1 minute. The supervisor believes that he succeeded to make a decrease in the waiting time. So, he selected a 50-customer sample and found that the mean waiting time was 2.75 minutes. To test if he can conclude that the mean waiting time is less than 3 minutes, then The computed Z value will equal 2.55- O 1.77-O 2.5 O 1.77 O