Mathematics, 21.04.2020 02:37 jamiahfernandes14
Cocaine addiction is very hard to break. Even among addicts trying hard to break the addiction, relapse is common. (A relapse is when a person trying to break out of the addiction fails and uses cocaine again.) A study is conducted to investigate the effectiveness of two drugs, desipramine and lithium, in the treatment of cocaine addiction. The subjects in the six-week study were cocaine addicts seeking treatment. The 72 subjects were randomly assigned to one of three groups (desipramine, lithium, or a placebo, with 24 subjects in each group) and the study was double-blind. Now we are able to consider all three groups together and test whether relapse rate differs by drug. Ten of the subjects taking desipramine relapsed, 18 of those taking lithium relapsed, and 20 of those taking the placebo relapsed.
a. Create a two way table from the information even.
b. Find the expected counts.
c. If it is appropriate to use a chi-square test, complete the test, give the chi-square statistic, the p-value, and an informative conclusion.
Answers: 3
Mathematics, 21.06.2019 22:00, fatherbamboo
Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.
Answers: 2
Cocaine addiction is very hard to break. Even among addicts trying hard to break the addiction, rela...
History, 20.10.2020 20:01
Mathematics, 20.10.2020 20:01
Mathematics, 20.10.2020 20:01
Health, 20.10.2020 20:01