4. Draw a histogram for the data. Does the distribution appear to be bell-shaped? 5. What percent...
Question:
4. Draw a histogram for the data. Does the distribution appear to be bell-shaped?
5. What percent of the distribution lies within one standard deviation of the mean?Within two standard deviations of the mean? How do these results agree with theEmpirical Rule?
In Exercises 6–8, use the frequency distribution found in Exercise 3.
6. Use the frequency distribution to estimate the sample mean of the data. Compare yourresults with Exercise 1.
7. Use the frequency distribution to find the sample standard deviation for the data.Compare your results with Exercise 2.
8. Writing: Use the results of Exercises 6 and 7 to write a general statement about themean and standard deviation for grouped data. Do the formulas for grouped data giveresults that are as accurate as the individual entry formulas?
Financial Accounting
ISBN: 978-0133472264
5th Canadian edition
Authors: Charles Horngren, William Thomas, Walter Harrison, Greg Berberich, Catherine Seguin