A pizza shop owner wishes to determine if the type of pizza a person selects is related to the age of the individual. The data obtained from a sample are shown. At α = 0.10, is the age of the purchaser related to the type of pizza ordered? Use the P-value method.

Age

Type of pizza



Total

Plain

Pepperoni

Mushroom

Double Cheese

10-19

20-29

30-39

40-49

12

18

24

a

21

76

50

b

39

52

40

c

g

f

e

d

143

233

161

122

Total

106

177

143

233



Find the contingency coefficient and interpret it.