Question: In 1908 W S Gosset published the article The Probable

In 1908, W. S. Gosset published the article “The Probable Error of a Mean” (Biometrika, Vol. 6, pp. 1–25). In this pioneering paper, written under the pseudonym “Student,” Gosset introduced what later became known as Student’s t-distribution, which we discuss in a later chapter. Gosset used the following data set, which shows the additional sleep in hours obtained by a sample of 10 patients given laevohysocyamine hydrobromide.
a. Find n.
b. Compute Σxi.
c. Determine the sample mean. Round your answer to one more decimal place than that used for the observations.

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