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Direction: Perform What Is Being Asked. (31 Points) : Property of STI

This document contains instructions for a statistical analysis problem involving a drug trial. The problem asks students to: 1) Perform a chi-squared test of independence at a significance level of 0.10 to determine if there is enough evidence that a new drug's side effect of nausea is independent of receiving the treatment or placebo. 2) Write a 10 point paragraph explaining how the data gathered from such a trial is important for making decisions about the drug. The document provides a rubric for scoring the response and breaks the first part of the problem into 7 items to be completed as part of the chi-squared test.

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Ericka Santos
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510 views1 page

Direction: Perform What Is Being Asked. (31 Points) : Property of STI

This document contains instructions for a statistical analysis problem involving a drug trial. The problem asks students to: 1) Perform a chi-squared test of independence at a significance level of 0.10 to determine if there is enough evidence that a new drug's side effect of nausea is independent of receiving the treatment or placebo. 2) Write a 10 point paragraph explaining how the data gathered from such a trial is important for making decisions about the drug. The document provides a rubric for scoring the response and breaks the first part of the problem into 7 items to be completed as part of the chi-squared test.

Uploaded by

Ericka Santos
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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GE1707

Name: Section:
Date: Score:

Direction: Perform what is being asked. (31 points)

1. The side effects of a new drug are being tested against a placebo. A simple random sample of
565 patients yields the results below. At a significance level of 𝛼𝛼 = 0.10, is there enough evidence
to conclude that the treatment is independent of the side effect of nausea? (7 items x 3 points)

Result Drug Placebo Total

Nausea 36 13 49

No nausea 254 262 516

Total 290 275 565

a. The null hypothesis 𝐻𝐻0 :


b. The alternative hypothesis 𝐻𝐻𝑎𝑎 :
c. The level of significance 𝛼𝛼 =
d. The degrees of freedom:
e. The test statistic:
f. The critical value:
g. Decision:

2. After calculating the data and test of independence. What to do with the data we’ve gathered?
How is the data important in making decisions? (10 points)

Rubric for scoring:


Criteria Performance Indicators Points
Provided pieces of evidence, supporting details, and factual
Content 6
scenarios
Grammar Used correct grammar, punctuation, spelling, and capitalization 1
Expressed the points in clear and logical arrangement of ideas in
Organization of ideas 2
the paragraph
Format Adhered to the required style/appearance 1
Total 10

04 Seatwork 1 *Property of STI


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