Question
A study published in the journal Neurology (May 22, 2001) examined whether the drug botulinum toxin A is helpful for recurring pain among patients who
A study published in the journalNeurology(May 22, 2001) examined whether the drug botulinum toxin A is helpful for recurring pain among patients who suffer from chronic low back pain. The 31 subjects who participated in the study were randomly assigned to one of two treatment groups: 16 received a placebo of normal saline and the other 15 received the drug itself. The subjects' pain levels were evaluated at the beginning of the study and again after eight weeks. The researchers found that 2 of the 16 subjects who received the saline experienced a substantial reduction in pain, compared to 9 of the 15 subjects who received the actual drug.
(a)Use these data to conduct a two-sided test of whether one-third of all patients would experience substantial pain reduction from a placebo. Report the hypotheses and p-value, along with a summary of your conclusion. Also provide specific details about how the p-value is calculated.
(b)Repeat (a) for testing whether one-tenth of all patients would experience substantial pain reduction from a placebo.
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started