Question 7 2 points Save Answ The waiting time for customers at the Burger Restaurant follows a normal distribution with
Posted: Wed Dec 08, 2021 5:12 am
- Question 7 2 Points Save Answ The Waiting Time For Customers At The Burger Restaurant Follows A Normal Distribution With 1 (16.59 KiB) Viewed 112 times
is correct?
Question 7 2 points Save Answ 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: 0 -1.77 O 2.5 0 -2.55 O 1.77