Textbook ExpertVerified Tutor
12 Nov 2021
Given information
84 conferences were considered as a sample and the duration of each was measured. The mean length of was 3.94 days with a standard deviation of 1.28 days. The underlying population is assumed to be normal.
Step-by-step explanation
Step 1.
Notice that the underlying population is normal.
Since samples drawn from a normal population are normally distributed and the sample size exceeds 30, the normal distribution should be used to model the given problem.
Unlock all Textbook Solutions
Already have an account? Log in