Analysis was done to compare individuals holding one of three types of credit cards and their age group.Results are summarized below.

Observed frequencies

Credit card owned

Age group

American Express

Visa

Mastercard

18 years to 50 years

10

48

34

Greater than 50 years

38

35

80

Expected frequencies

Age group

American Express

Visa

Mastercard

18 years to 50 years

18.02

31.17

42.81

Greater than 50 years

29.98

51.83

71.19

Baby CHIS

Age group

American Express

Visa

Mastercard

18 years to 50 years

3.57

9.09

1.81

Greater than 50 years

2.15

5.47

1.09

A)Write down the hypotheses to test for independence.

B)Test your hypotheses at the 10% level of significance, by giving the calculated test statistic, giving the critical value, giving your decision and conclusion.