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A clinical trial is conducted to compare an experimental medication to placebo to reduce the symptoms of asthma. Two hundred participants are enrolled in the study and randomized to receive either the experimental medication or placebo. The primary outcome is self-reported reduction of symptoms. Among 100 participants who receive the experimental medication, 38 report a reduction of symptoms as compared to 21 participants of 100 assigned to placebo. When you test if there is a significant difference in the proportions of participants reporting a reduction of symptoms between the experimental and placebo groups. Use a = 0.05. What should the researcher's conclusion be for a 5% significance level? Reject Ho because 2.64 z 1.960. We have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We reject Ho at the 5% level because 2.64 is greater than 1.96. We do have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We fail to reject Ho at the 5% because -2.64 is less than 1.645. We do not have statistically significant evidence to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We fail to reject Ho at the 5% because -2.64 is less than 1.96. We do have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We fail to reject Ho at the 5% because 2.64 is greater than -1.645. We do have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. QUESTION 14 If a 95% confidene interval for the difference in two independent means is (-4.5 to 2.1), then the point estimate is -2.1. O True False

A clinical trial is conducted to compare an experimental medication to placebo to reduce the symptoms of asthma. Two hundred participants are enrolled in the study and randomized to receive either the experimental medication or placebo. The primary outcome is self-reported reduction of symptoms. Among 100 participants who receive the experimental medication, 38 report a reduction of symptoms as compared to 21 participants of 100 assigned to placebo. When you test if there is a significant difference in the proportions of participants reporting a reduction of symptoms between the experimental and placebo groups. Use a = 0.05. What should the researcher's conclusion be for a 5% significance level? Reject Ho because 2.64 z 1.960. We have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We reject Ho at the 5% level because 2.64 is greater than 1.96. We do have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We fail to reject Ho at the 5% because -2.64 is less than 1.645. We do not have statistically significant evidence to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We fail to reject Ho at the 5% because -2.64 is less than 1.96. We do have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We fail to reject Ho at the 5% because 2.64 is greater than -1.645. We do have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. QUESTION 14 If a 95% confidene interval for the difference in two independent means is (-4.5 to 2.1), then the point estimate is -2.1. O True False

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A clinical trial is conducted to compare an experimental medication to placebo to reduce the symptoms of asthma. Two hundred participants are enrolled in the study and randomized to receive either the experimental medication or placebo. The primary outcome is self-reported reduction of symptoms. Among 100 participants who receive the experimental medication, 38 report a reduction of symptoms as compared to 21 participants of 100 assigned to placebo. When you test if there is a significant difference in the proportions of participants reporting a reduction of symptoms between the experimental and placebo groups. Use a = 0.05. What should the researcher's conclusion be for a 5% significance level? Reject Ho because 2.64 > 1.960. We have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We reject Ho at the 5% level because 2.64 is greater than 1.96. We do have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We fail to reject Ho at the 5% because -2.64 is less than 1.645. We do not have statistically significant evidence to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We fail to reject Ho at the 5% because -2.64 is less than 1.96. We do have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. - We fail to reject Ho at the 5% because 2.64 is greater than -1.645. We do have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. QUESTION 14 If a 95% confidene interval for the difference in two independent means is (-4.5 to 2.1), then the point estimate is -2.1. O True O False QUESTION 15 Click Saue and Subn
Transcribed Image Text:A clinical trial is conducted to compare an experimental medication to placebo to reduce the symptoms of asthma. Two hundred participants are enrolled in the study and randomized to receive either the experimental medication or placebo. The primary outcome is self-reported reduction of symptoms. Among 100 participants who receive the experimental medication, 38 report a reduction of symptoms as compared to 21 participants of 100 assigned to placebo. When you test if there is a significant difference in the proportions of participants reporting a reduction of symptoms between the experimental and placebo groups. Use a = 0.05. What should the researcher's conclusion be for a 5% significance level? Reject Ho because 2.64 > 1.960. We have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We reject Ho at the 5% level because 2.64 is greater than 1.96. We do have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We fail to reject Ho at the 5% because -2.64 is less than 1.645. We do not have statistically significant evidence to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We fail to reject Ho at the 5% because -2.64 is less than 1.96. We do have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. - We fail to reject Ho at the 5% because 2.64 is greater than -1.645. We do have statistically significant evidence at a = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. QUESTION 14 If a 95% confidene interval for the difference in two independent means is (-4.5 to 2.1), then the point estimate is -2.1. O True O False QUESTION 15 Click Saue and Subn
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