A restaurant chain claims that the waiting time for customers is 8 minutes with a population standard deviation of 1 minute. The quality control department found in a sample of 50 customers that the mean waiting time was 2.75 minutes. At the 0.05 level of significance, can you conclude that the mean waiting time is less than 3 minutes? Demonstrate the procedure and explain your answer.

Answer rating: 100% (QA)

a State the hypotheses Null hypothesis H03 Alternative hypothesis Ha 3 Part a Null hypothesisH03 Alt... View the full answer