Sample observations were randomly chosen
The following sample observations were randomly chosen.
X: 5 3 6 3 4 4 6 8
Y: 13 15 7 12 13 11 9 5
-Find out the coefficient of the correlation.
-Test the null hypothesis: H_0: ?=0,H_1: ??0 at the five percent significance level.
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Determine what approximate ratio of acid and salt is needed, to make the pH 8.8 of a boric acid-sodium borate buffer solution , where pKa of borate acid is 9.24
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