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

Question

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.

Quizplus · Accepted Answer

The test statistic value of 2.486 is greater than the critical value of 1.96 for a 5% significance level (two-tailed test), so we reject the null hypothesis and conclude that the sequence of observations is not random.

A Runs Test Was Performed on 200 Measurements of Beam