Q2. A medical laboratory claims that the mean turn-around time for the performance of a battery of tests on blood samples is 1.023 business days. The manager of a large medical practice believes that...

Q2. A medical laboratory claims that the mean turn-around time for the performance of a battery of tests on blood samples is 1.023 business days. The manager of a large medical practice believes that the actual mean is larger. A random sample of 45 blood samples yielded a mean of 2.09 and a sample standard deviation of 0.13 days. Perform the relevant test at the 10% level of significance, using these data.