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Assume that the failure times are independent Exponential random variables with mean ? You seek to conduct a chi-square test of the hypotheses H0: H7 at the 5% significance level. What is the observed value of the test statistic x2s? (correct to 3 decimal places)

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Answer #1

The observed chi-square test statistic is,

\chi ^2 _{obs} = 2T / \mu = 2 * 178.2 / 7 = 50.914

So,

\chi ^2 _{obs} = 50.914

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