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1 Critical values of chi-square Table size Significance level (rows x columns) 0.05 0.01 2 x 2 3.841 6.635 2 x 3 or 3 x 2 5.991 9.210 3 x 3 9.488 13.277 2 x 4 or 4 x 2 7.815 11.345 2 x 5 or 5 x 2 9.488 13.277 Print DoneOf the 99 participants in a drug trial who were given a new experimental treatment for arthritis, 59 showed improvement. Of the 90 participants given a placebo, 46 showed improvement. Construct a two-way table for these data, and then use a 0.05 significance level to test the claim that improvement is independent of whether the participant was given the drug or a placebo. E Click the icon to view the critical values of x2 table. Complete the following two-way table. improvement no improvement Drug Placebo