Question: 4. a) b) c) d) The following data were obtained for the amount of time (seconds) taken by a proposed computer system to compile

4. a) b) c) d) The following data were obtained for the

4. a) b) c) d) The following data were obtained for the amount of time (seconds) taken by a proposed computer system to compile a sample of short C++ programs: 0.6 4.4 4.7 1.0 2.4 3.0 1.8 3.5 2.3 4.8 3.9 2.9 4.2 3.9 1.0 Test the hypothesis that the mean compilation time for all short C++ programs run on the system is at least 4 seconds. Use a = = 0.05. Test the hypothesis that the standard deviation in compilation time is less than 0.9 second. Use a = 0.05. Construct 99% two-sided confidence interval on the mean. Should the null hypothesis that = 3.5 seconds be accepted or rejected at 1% significance level?

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a H0 4 H1 4 For this hypothesis test we can use a onesample ttest since we are comparing one sample mean to a given value The sample mean is 307 and the sample standard deviation is 1141 Using the sam... View full answer

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