Question

Two groups of patients, suffering from the same medical condition, took part in a clinical trial of a
new drug. One of the groups was given the drug whilst the other group was given a placebo, a drug
that has no physical effect on their medical condition.
The table shows the number of patients in each group and whether or not their condition improved.
Placebo
Drug
46
20
Condition
improved
Condition did not
improve
55
29
Conduct a xtest, at the 5% level of significance, to determine whether the condition of the patients
at the conclusion of the trial is associated with the treatment that they were given.​

Answer 1

Answer:

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