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1st box- include or do not include 2nd box- does or does not 3rd box- is or is n

ID: 3231731 • Letter: 1

Question

1st box- include or do not include 2nd box- does or does not 3rd box- is or is not HW Score: 92.86%, 6.5 of 7 pts Score: 0.5 of 1 pt T 9.2.11 eQuestion Help Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 36 of the 42 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 90 of the 104 subjects developed rhinovirus infections. Use a 0.01 significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts (a) through (c) below. identify the P-value P-value 0.897 (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is greater than the significance level of a 0.01, so fail to reject the null hypothesis. There is not sufficient evidence to support the claim that echinacea treatment has an effect. b. Test the claim by constructing an appropriate confidence interval. The 99% confidence interval is -0.172 (p1 p2) 0.155 (Round to three decimal places as needed.) What is the conclusion based on the confidence interval? Because the confidence interval limits 0, there appear to be a significant difference between the two proportions. There evidence to support the claim that echinacea treatment has an effect

Explanation / Answer

Because the confidence interval limits include 0, there does not appere to be significant difference between the two proportions. There is not evidence to support the claim that echinacea treatment has an effect.

Expalnation: Since 0 lies between given 99 % confidence interval limits i.e between 0.172<p1p2<0.155. So we have written include in first box.

Since we reject the null hypothesis so we have written does not and is not in second and third box respectively.

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