Q4. The following table contains observed frequencies for a sample of 240. Test for independence of the row and column variables using α = 0.05.
|
Column Variable
|
|---|
Row Variable
|
A |
B |
C |
|---|
P
|
30 |
48 |
40 |
|---|
Q
|
42 |
40 |
40 |
|---|
(A). What is f23 (i.e., observed frequency) value? (3%)
(B). What is e23 (i.e., expected frequency) value? (3%)
(C). What is the test statistic value?
(D). Observing the ??2 table, what is the possible range of values of the p-value?
[Multiple choice question (single answer)]
(a) 0.01
(d) 0.1
(E). Using the p-value approach, which statement is true?
[Multiple choice question (single answer)]
(a) Because p-value≦0.05, we do not reject H0.
(b) Because p-value > 0.05, we do not reject H0.
(c) Because p-value > 0.05, we reject H0.
(d) Because p-value≦0.05, we reject H0.
(e) Because p-value≦test statistic, we reject H0.
(f) None of the above
Need answers for last 2 subparts please.