8.131 Sleep. In 1908, W. S. Gosset published the article "The Prob- able Error of a Mean" (Biometrika, Vol. 6, pp. 1-25). In this pioneer- ing paper, written under the pseudonym "Student," Gosset introduced what later became known as Student's t-distribution. Gosset used the following data set, which gives the additional sleep in hours obtained by a sample of 10 patients using laevohysocyamine hydrobromide. 1.9 0.8 1.1 4.4 0.1 -0.1 3.4 5.5 1.6 4.6
8.131 Sleep. In 1908, W. S. Gosset published the article "The Prob- able Error of a Mean" (Biometrika, Vol. 6, pp. 1-25). In this pioneer- ing paper, written under the pseudonym "Student," Gosset introduced what later became known as Student's t-distribution. Gosset used the following data set, which gives the additional sleep in hours obtained by a sample of 10 patients using laevohysocyamine hydrobromide. 1.9 0.8 1.1 4.4 0.1 -0.1 3.4 5.5 1.6 4.6
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
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Chapter5: A Survey Of Other Common Functions
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![8.131 Sleep. In 1908, W. S. Gosset published the article "The Prob-
able Error of a Mean" (Biometrika, Vol. 6, pp. 1-25). In this pioneer-
ing paper, written under the pseudonym "Student," Gosset introduced
what later became known as Student's t-distribution. Gosset used the
following data set, which gives the additional sleep in hours obtained
by a sample of 10 patients using laevohysocyamine hydrobromide.
1.9 0.8 1.1 0.1 -0.1
4.4 5.5 1.6 4.6 3.4
a. Obtain and interpret a 95% confidence interval for the additional
sleep that would be obtained on average for all people using laevo-
hysocyamine hydrobromide. (Note: x = 2.33 hr; s = 2.002 hr.)
b. Was the drug effective in increasing sleep? Explain your answer.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1713a016-ce32-44ee-a43f-25cf4da19e24%2F707a9d57-d541-4e1e-b353-142236957f7f%2Ffre93gp_processed.png&w=3840&q=75)
Transcribed Image Text:8.131 Sleep. In 1908, W. S. Gosset published the article "The Prob-
able Error of a Mean" (Biometrika, Vol. 6, pp. 1-25). In this pioneer-
ing paper, written under the pseudonym "Student," Gosset introduced
what later became known as Student's t-distribution. Gosset used the
following data set, which gives the additional sleep in hours obtained
by a sample of 10 patients using laevohysocyamine hydrobromide.
1.9 0.8 1.1 0.1 -0.1
4.4 5.5 1.6 4.6 3.4
a. Obtain and interpret a 95% confidence interval for the additional
sleep that would be obtained on average for all people using laevo-
hysocyamine hydrobromide. (Note: x = 2.33 hr; s = 2.002 hr.)
b. Was the drug effective in increasing sleep? Explain your answer.
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