Question: In 1908, W. S. Gosset published the article The Probable Error of a Mean (Biometrika, Vol. 6, pp. 125). In this pioneering paper, written under

In 1908, W. S. Gosset published the article €œThe Probable Error of a Mean€ (Biometrika, Vol. 6, pp. 1€“25). In this pioneering paper, written under the pseudonym €œStudent,€ 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 Î£xi.
c. Determine the sample mean. Round your answer to one more decimal place than that used for the observations.

1.9 0.8 . 0.1 0.1 4.4 5.5 16 4.6 34

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