Question

Statistics

EXERCISE 4. Dave’s Automatic Door installs automatic garage door openers. The following list indicates the number of minutes needed to install a sample of 10 doors: 28, 32, 24, 46, 44, 40, 54, 38, 32, 42. Find a) range b) arithmetic mean c) mean deviation d) interpret the range and the mean deviation. Answer. a) 30 b) 38 c) 7,2 d) The difference of 54 and 24 is 30. On the average the number of minutes required to install a door deviates 7,2 minutes from the mean of 38 minutes. Please provide how to calculate this one, not only answer. If you dont have enough space, please show me these exercise on the picture. Thank you in advance!

Answer 1