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Calculating Dispersion and Confidence Intervals

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Please calculate and answer questions by using raw data above.
Please calculate Part A #3,4 and Part B #3.
Thanks

Part A
3. Calculate the dispersion (standard deviation and Range). Identify the 1, 2, and 3 Sigma ranges for each sample.
4. Group the data and set up frequency tables for each sample. Again calculate the same items done in #2 and #3 above for the group data. Compare the results with the results from#2(mode,mean,median) and #3. Show your calculations please.

Part B
3. Calculate the 95% confidence interval for all samples.

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Solution Summary

This solution shows step-by-step calculations to determine the dispersion (standard deviation and range) and the 95% confidence interval for all samples. It also compares the group data in frequency tables.

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