A Runs Test Was Performed on 200 Measurements of Beam

question 59

Multiple Choice

A runs test was performed on 200 measurements of beam deflections and resulted in a test statistic value of 2.486.Using a 5% significance level, what would you conclude about whether the sequence was produced in a random manner?

• A) 2.486 > 1.96, so reject the null hypothesis and conclude the sequence of observations is not random.
• B) 2.4868 > 1.96, so do not reject the null hypothesis and conclude the sequence of observations may well be random.
• C) 2.486 < 2.575, so reject the null hypothesis and conclude the sequence of observations is not random.
• D) 2.486 < 2.575, so do not reject the null hypothesis and conclude the sequence of observations may well be random.

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