In a study of the potential role of drug therapy in the treatment of bladder instability in older adults, 136 incontinent older adults received an experimental therapeutic, and 124 received a placebo treatment. Of the “experimental” participants, 128 saw a satisfactory resolution to their incontinence, compared with only 110 of the patients receiving a placebo. You are interested in determining whether or not there is a statistically significant difference between groups (alpha = 0.05). What is the obtained value of your statistic? Take your answer to two decimal places. (Answer = 2.55) How many degrees of freedom do you have in your analysis? (1) To what critical value would you compare your observed value of chi-square? Express your answer to four decimal places. (3.8415) Need an explanation of these answers. Thanks.
In a study of the potential role of drug therapy in the treatment of bladder instability in older adults, 136 incontinent older adults received an experimental therapeutic, and 124 received a placebo treatment. Of the “experimental” participants, 128 saw a satisfactory resolution to their incontinence, compared with only 110 of the patients receiving a placebo. You are interested in determining whether or not there is a statistically significant difference between groups (alpha = 0.05).
What is the obtained value of your statistic? Take your answer to two decimal places. (Answer = 2.55)
How many degrees of freedom do you have in your analysis? (1)
To what critical value would you compare your observed value of chi-square? Express your answer to four decimal places. (3.8415)
Need an explanation of these answers. Thanks.
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