Comparing Data Sets

7) Use boxplots to compare the Mother’s heights data to the Father’s heights data on the same graph.

8) Describe the similarities and differences in the data sets.

Finding Descriptive Numbers

Go to Datasets and then Elementary Stats, 9^{th} Edition. Open the file named Cans. The data will

appear in the Sample Editor. The CN109 data in column 1 consists of the axial loads (in pounds) of 175

aluminum cola cans that are 0.0109 in. thick. (The axial load is the maximum load the sides can

support before collapsing.) Find the following.

9) Mean, median, and midrange.

10) Range, variance, and standard deviation.

11) List any values that you think may be outliers

** **

** **

**Week 2 Project **

The CN111 data in column 2 consists of the axial loads (in pounds) of 175 aluminum cola cans that are 0.0111 in. thick. (The axial load is the maximum load the sides can support before collapsing.) Find the following.

12) Mean, median, and midrange.

13) Range, variance and standard deviation.

14) List any values that you think may be outliers.

Five-Number Summary

15) Find the minimum, *Q*1, *Q*2, *Q*3, and the maximum value for the CN109 data in column 1.

16) Find the minimum, *Q*1, *Q*2, *Q*3, and the maximum value for the CN111 data in column 2.

17) Compare the cans datasets using boxplots. Does one data set appear to have more variability

than the other? Compare the standard deviations of each data set.

Skewness

18) Look at the histograms for each set of data values. Does either distribution seem to be skewed?

19) Compare the mean and median for the CN109 data values. What type of skewness does this

indicate?

20) Compare the mean and median for the CN111 data values. What type of skewness does this

indicate?

Classifying Variables

21) Would the CN109 data in column 1 be considered a sample or a population?

22) State whether the CN109 variable is qualitative or quantitative?

23) State whether the CN109 variable is discrete, continuous or neither?

24) State the level of measurement for the CN109 variable.

Subject | Mathematics |

Due By (Pacific Time) | 09/13/2014 07:00 am |

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