Homework Clinic
Mathematics Clinic => Statistics => Topic started by: chads108 on Jan 18, 2020
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Test whether he given claim is supported or not supported using a 0.05 significance level. Assume that the sample has been randomly selected from a population with a normal distribution.
In tests of a computer component, it is found that the mean time between failures is 520 hours. A modification is made which is supposed to increase the time between failures. Tests on a random sample of 10 modified components resulted in the following times (in hours) between failures.
518 548 561 523 536
499 538 557 528 563
Use a significance level of 0.05 to test whether the claim that the mean time between failures is greater than 520 hours is supported or not supported.
◦ supported
◦ not supported
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supported