Question

3. The following data indicate the amount of gasoline (in gallons) purchased at a highway gasoline station for a random sample of 24 automobile owners:

44.24	35.56	45.93	49.92	38.94	41.16	44.84
27.28	50.66	50.97	45.93	46.58	28.73	25.93
24.21	23.84	54.58	52.62	47.36	30.84	48.62
31.15	38.58	34.96	45.32	53.81	40.22	37.19

Decide whether or not the data appear to be approximately normally distributed by:

1. evaluating the actual versus theoretical properties.

b. How do we know data is not normally distributed?

Answer 1