Of the 96participants in a drug trial who were given a new experimental treatment for arthritis, 59 showed improvement. Of the 91 participants given a placebo, 48 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. 1. find the frquency

Of the 96

participants in a drug trial who were given a new experimental treatment for arthritis,59showed improvement. Of the 91participants given a placebo,48showed 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

1. find the expectant frequency of each cell of the table

2.find the value of the x² test statistic

3. use the given significance level to find the x² critical value

4. complete the test claim and state the conclusion that addresses the original claim

drug improvement

placebo improvement

drug no improvement

placebo no improvement