ASSIGNMENT 1
INSTRUCTIONS: You are to work
independently
on this assignment. The total number of points possible is 50. Please note that point allocation varies per question. Use the Help feature in MINITAB 16 to read descriptions for the data sets so that you can make meaningful comments.
[20 pts] 1. Use the data set ASSESS.MTW in the Student14 folder.
a) Prepare a pie chart for the variable “Height.” Comment on the results. [4 pts]
b) Prepare a segmented bar chart to examine “Height” by “Garage?” (to do this list Garage first in the dialogue box). Comment on the results. [6 pts]
c) Prepare a histogram for the variable “Total$.” Comment on the shape of the distribution. [4 pts]
d) Show descriptive statistics on the variable “Total$” for the number of bedrooms. Use the optional “By Variables” box; enter “Bedrooms” in the box. Comment on the results. Compare the distributions across groups in terms of central tendency and variability. [6 pts]
[14 pts] 2. Use the data set ENDOWMENT.MTW in the Student14 folder.
a) Show descriptive statistics for the variable “Endow(000s)” for both types of institutions. Use the optional “By Variables” box; enter “Type” in the box. Compute the range and IQR for each type as well. Comment on the results. [7 pts]
b) Prepare boxplots of “Endow(000s)” for both types of institutions showing them on the same graph. Choose the options “One Y” and “With Groups.” Graph the variable “Endow(000s)” and use “Type” as the categorical variable for grouping. Do the boxplots agree with your comments in part (a)? Explain. [7 pts]
[16 pts] 3. Use the data set TOYS.MTW.
a) Prepare a histogram for “Weight.” Comment on the shape of the distribution. [6 pts]
b) Prepare a histogram for “Length.” Comment on the shape of the distribution. [6 pts]
c) Prepare a stem and leaf display for “Rejects.” Comment on the shape of the distribution. [4 pts]
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