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Question 5.14: A random sample of size 10 is to be drawn from a normal dist......

A random sample of size 10 is to be drawn from a normal distribution with mean 4. The Student’s t statistic t = (\overline{X}\ −\ 4) ∕ (s ∕ \sqrt{10}) is to be computed. What is the probability that t > 1.833?

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This t statistic has 10 − 1 = 9 degrees of freedom. From the t table, P(t > 1.833) = 0.05. See Figure 5.8.

5.14

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