carsons tablet has 2000 videos. the play time for the videos is skewed to the right, with a mean of 135 seconds and a standard deviation of 25 seconds. Part 1: Can you accurately calculate the probability that the mean play time is more than 142 seconds for an SRS of 10 videos? Explain. Part 2: If you take a random sample of 50 videos instead of 10, explain how the Central Limit Theorem allows you to find the probability that the mean play time is more than 142 seconds. Calculate this probability and show your work.

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?