Hector obtained a random sample of twenty recent college graduates who own cars and asked each to disclose the age of their car (in months). Is it reasonable to conclude that age of car is normally distributed? The normal probability plot is shown below and the correlation between age of car and expected z-scores is 0.914.

Transcribed Image Text:

2.5 1.5 1- 0.5 -0.5 - -1 - -1.5 -2- -2.5 20 40 60 80 100 120 140 Expected z-score 2.