Perform Chi-squared test of independence. The significance level alpha is 1%.
Columns: category 1
Rows: categoty 2
Contingency table
30 40 50
10 35 35
14 50 20
a. DF=
b. Ch-square, round to three decimal places=
c. p-value, round to three decimal places=
d. Conclusions: based on the results, do you think the these two variables are dependent or independent? Enter the correct answer using the following options:
A. Not independent at 1% significance level.
B. Independent with 99% confidence.
C. Do not reject that they are independent at 1% significance level and reserve judgement. We may accept independence, but with some unknown probability.
D. Reject both, H0 and H1, the test has failed.
E. Accept both, H0 and H1, the test has failed.