-4. Consider the following sets of replicate measurements: *A B *C D *E F 2.7 0.514 70.24 3.5 0.812 70.65 3.0 0.503 70.22 3.1 0.792 70.63 2.6 0.486 70.10 3.1 0.794 70.64 2.8 0.497 3.3 0.900 70.21 3.2 0.472 2.5 Calculate the mean and the standard deviation for each of these six data sets. Calculate the 95% confidence interval for each set of data. What does this interval mean? 7-5. Calculate the 95% confidence interval for each set of data in Problem 7-4 if s is a good estimate of s and has a value of *set A, 0.30; set B, 0.015; *set C, 0.070; set D, 0.20; *set E, 0.0090; and set F, 0.15. 7-6. The last result in each set of data in Problem 7-4 may be an outlier. Apply the Q test (95% confidence level) to determine whether or not there is a statistical basis to reject the result.
7-4. Consider the following sets of replicate measurements: *A B *C D *E F 2.7 0.514 70.24 3.5 0.812 70.65 3.0 0.503 70.22 3.1 0.792 70.63 2.6 0.486 70.10 3.1 0.794 70.64 2.8 0.497 3.3 0.900 70.21 3.2 0.472 2.5
Calculate the
7-5. Calculate the 95% confidence interval for each set of data in Problem 7-4 if s is a good estimate of s and has a value of *set A, 0.30; set B, 0.015; *set C, 0.070; set D, 0.20; *set E, 0.0090; and set F, 0.15. 7-6. The last result in each set of data in Problem 7-4 may be an outlier. Apply the Q test (95% confidence level) to determine whether or not there is a statistical basis to reject the result.
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