In an acupuncture study 12 patients were randomly assigned to
the acupuncture treatment and 8 to the placebo. The visual analog
scale (VAS) was used to measure pain intensity before and after
treatment for each patient in each treatment group. The tables
below give the results of the simulated study.
i) Is there sufficient evidence to conclude that acupuncture
reduces pain intensity on average?
ii) Is there sufficient evidence to conclude that the
acupuncture treatment produces a higher mean reduction in VAS
scores compared to the placebo?
Show transcribed image text In an acupuncture study 12 patients were randomly assigned to the acupuncture treatment and 8 to the placebo. The visual analog scale (VAS) was used to measure pain intensity before and after treatment for each patient in each treatment group. The tables below give the results of the simulated study. Is there sufficient evidence to conclude that acupuncture reduces pain intensity on average? Is there sufficient evidence to conclude that the acupuncture treatment produces a higher mean reduction in VAS scores compared to the placebo?
In an acupuncture study 12 patients were randomly assigned to the acupuncture treatment and 8 to the placebo. The visual analog scale (VAS) was used to measure pain intensity before and after treatment for each patient in each treatment group. The tables below give the results of the simulated study. Is there sufficient evidence to conclude that acupuncture reduces pain intensity on average? Is there sufficient evidence to conclude that the acupuncture treatment produces a higher mean reduction in VAS scores compared to the placebo?
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