Rhino viruses typically cause common colds. In a test of the effectiveness ofâ€‹ echinacea, 38 of...

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Rhino viruses typically cause common colds. In a test of theeffectiveness ofâ€‹ echinacea, 38 of the 45 subjects treated withechinacea developed rhinovirus infections. In a placeboâ€‹ group, 87of the 101 subjects developed rhinovirus infections. Use a 0.05significance level to test the claim that echinacea has an effecton rhinovirus infections. Complete partsâ€‹ (a) throughâ€‹ (c)below.
Identify the test statistic.:
Z equals negative 0.27 â€‹(Round to two decimal places asâ€‹needed.)
Identify theâ€‹ P-value. â€‹:
P-value equals 0.788 â€‹(Round to three decimal places asâ€‹needed.)
What is the conclusion based on the hypothesisâ€‹ test? Theâ€‹P-value is greater than the significance level of a= 0.05â€‹, so failto reject the null hypothesis. There is not sufficient evidence tosupport the claim that echinacea treatment has an effect. :
b. Test the claim by constructing an appropriate confidenceinterval.
The 95â€‹% confidence interval is nothing less than leftparenthesis p 1 minus p 2 right parenthesis less than nothing.:
_<(P1-P2)>_ ?
So what does P1 and P2 equal?

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using exceladdinphstattwo sample test z test for difference we have Z Test for Differences in Two Proportions Data Confidence Interval Estimate Hypothesized Difference 0 of the Difference Between Two Proportions Level of Significance 005 Group 1 See Answer

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