In a study of the effectiveness of a fabric device that acts like a support stoc

Question

In a study of the effectiveness of a fabric device that acts like a support stocking fora random to either a standard treatment consisting of drugs or the experimental treatment that consisted of drugs plus weak or damaged heart, 110 people who consented to treatment were assigned at surgery to instan the stocking. After two years, as% of the P-value. Use Pexperimental Pstandard- Round your test statistic to two decimal places and your P-value to four decimal places.) 0 7411 .0 4586 Do these data provide convincing evidence that the proportion of patients who improve is higher for the experimental treatment than for the standand treatment? Test the using a significance level of 0.0s Yes No

Explanation / Answer

The statistical software output for this problem is:

Two sample proportion summary hypothesis test:
p1 : proportion of successes for population 1
p2 : proportion of successes for population 2
p1 - p2 : Difference in proportions
H0 : p1 - p2 = 0
HA : p1 - p2 > 0

Hypothesis test results:

Hence,

p - Value = 0.2293

Difference Count1 Total1 Count2 Total2 Sample Diff. Std. Err. Z-Stat P-value p1 - p2 27 60 19 50 0.07 0.094452168 0.74111586 0.2293

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