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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 Stats Exam 2 References Mailings Review View =、三、而 AaBbCcDdEe AaB AaBbCcDdEe AaßbCcDdEe AaBbCcDdEe Normal No Spacing Heading 1 Heading 2 Title es, fixes, and improvements, choose Check for Updates. The lengths of pregnancies have a mean of 268 days and a standard deviation of 15 days. A researcher is concerned that people who have taken a particular drug in the past might have shorter lengths of pregnancies. The researcher sampled n = 25 people who had taken the drug and recently given birth, and found they had an average length of pregnancy of 262.9 days. Do these data support the researcher's claim? (Use a = 0.01, one-tail test) 9. Calculate the effect size using Cohen's d. 10. What conclusion can the researcher make from these data a. Reject the null; there was a significant difference b. Reject the null; there was not a significant difference c. Fail to reject the null; there was a significant difference d. Fail to reject the null; there was not a significant difference
Transcribed Image Text:A Stats Exam 2 References Mailings Review View =、三、而 AaBbCcDdEe AaB AaBbCcDdEe AaßbCcDdEe AaBbCcDdEe Normal No Spacing Heading 1 Heading 2 Title es, fixes, and improvements, choose Check for Updates. The lengths of pregnancies have a mean of 268 days and a standard deviation of 15 days. A researcher is concerned that people who have taken a particular drug in the past might have shorter lengths of pregnancies. The researcher sampled n = 25 people who had taken the drug and recently given birth, and found they had an average length of pregnancy of 262.9 days. Do these data support the researcher's claim? (Use a = 0.01, one-tail test) 9. Calculate the effect size using Cohen's d. 10. What conclusion can the researcher make from these data a. Reject the null; there was a significant difference b. Reject the null; there was not a significant difference c. Fail to reject the null; there was a significant difference d. Fail to reject the null; there was not a significant difference
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