
Chapter 11
PB
Statistical Inference: Hypothesis Testing for Two Populations
405
Step 7: Arrive at a statistical conclusion and business implication
The observed F value 0.58 falls between the lower value F
L
= 0.2380 and upper value F
U
= 4.20.
Hence, null hypothesis is accepted and the alternative hypothesis is rejected. Therefore, it can
be concluded that there is no signi cant difference in the variance of the amount spent on pur-
chasing fuel by families in two different cities. The results obtained by the sample may be due
to chance.
Families in the two cities do not signi cantly differ in terms of the amount spent on fuel. The
higher variance ...