Question

The data set below contains the overall miles per gallon​ (MPG) of 20 small SUVs from one year. Complete parts​ (a) and​ (b). 26 26 24 22 22 22 22 21 21 22 20 20 21 21 21 21 21 21 21 21

Decide whether the data appear to be approximately normally distributed by comparing data characteristics to theoretical properties.

Based on the theoretical properties of the normal​ distribution, do the data appear to be approximately normally​ distributed?

yes/no THE (min/Range/MAX/ MIN) is (lessthan/greator than aprox equil)

Decide whether the data appear to be approximately normally distributed by constructing a normal probability plot.

Answer 1

----------I HAVE USED MINITAB TO GET THE RESULT----------

FORMULA FOR BASIC STATISTICS-

ENTER THE DATA------STAT-----BASIC STATISTICS-----DISPLAY DISCRIPTIVE STATISTICS------

FORMULA FOR PROBABILITY PLOT---

ENTER THE DATA---GRAPH----PROBABILITY PLOT

OUITPUT IS-

Since mean is not closer to median also skewness is positive so that given data is not approximately normal

probability plot is-

from plot it is clear that the data is not approximately normal.