Lab#__________ Name___________________
Section 30__5____ Partner: _______________
Homework #1
BE SURE YOU READ THE HOMEWORK INFORMATION HANDOUT!!
SECTION 1.1 (starting on p. 22)
(1) 1.18
(2) 1.25 Open SPSS and the data file ( Ch01/EX01_025.por from any of the above sources). The data should appear in SPSS. You cannot create back-to-back stem-and-leaf plots using SPSS. Instead, create two separate stem-and-leaf plots and display them beside each other.
To create a back-to-back stem-and-leaf plot of this distribution, follow these steps:
1.) Click Analyze

Descriptive Statistics

Explore.
2.) Click minutes , then click
 to move minutes into the “Dependant List” box.
3.) Click gender , then click
 to move minutes into the “Factor List” box.
4.)
By default, the “Display” box in the lower left corner has “Both” selected. Click
Plots .
5.) Click Plots located next to the “Options” button.
6.) Click None within the “Boxplots” box. Be sure that a  appears in front of “Stem-and-Leaf” within the ‘Descriptive” box.
7.) Click Continue
8.) Click OK
9.) Cut and Paste just the Stem-and-Leaf Plots into Word.
10.) Answer the questions in the textbook.
(3) 1.27 Open SPSS and the data file (Ch01/EX01_027.POR) . The data should appear in SPSS.
To create a stem-and-leaf plot:
1.) Click Analyze

Descriptive Statistics

Explore.
2.) Click Measure , then click
 to move Measure into the “Dependant List” box.
3.)
By default, the “Display” box in the lower left corner has “Both” selected. Click
Plots .
4.) Click Plots located next to the “Options” button.
5.) Click None within the “Boxplots” box. Be sure that a  appears in front of “Stem-and-Leaf” within the ‘Descriptive” box.
6.) Click Continue
7.) Click OK
8.) Cut and Paste just the Stem-and-Leaf Plots into Word.
9.) Answer the questions in the textbook.
Or to create a histogram you can follow the steps above  ing Histogram and not Stem-and-Leaf or:
1.) Click Graphs and then click Histogram .
2.) Click Measure , then click
 to move Measure into the “Variable” box.
3.) If you want to include a title or a footnote on the chart, click Titles
. The “Titles” window appears. In the properly labeled box, (“Title” or “Footnote”), type in the desired information.
Click Continue.
4.) Click OK .
5.) Cut and Paste just the Histogram into Word.
6.) Answer the questions in the textbook.
SECTION 1.2 (starting on p. 55)
(4)1.46
(5)1.47

Lab#__________ Name___________________
Section 30__5____ Partner: _______________
(6)1.53 Open SPSS and the data file (Ch01/TA01_003.POR)
1.) Analyze

Descriptive Statistics

Explore
2.) Click v2 , then click
 to move v2 into the “Dependant List” box.
3.)
By default, the “Display” box in the lower left corner has
Both selected. Make sure it’s clicked.
4.) Click the Statistics button located in the lower right corner of the window.
5.) Click Percentiles . Be sure that a  appears in front of “Descriptives”.
6.) Click Continue .
7.) Click Plots . Uncheck Stem-and-leaf and check Histogram .
8.) Click Continue .
9.) Click OK .
10.) Cut and Paste into Word using Copy objects .
11.) Now you need to delete DC. In the spreadsheet, right click on the line containing DC (should be line 9 , click Clear and rerun the steps above.
12.) Answer the questions in the textbook.
(7) 1.62 Calculate the mean and the standard deviation by hand first. Then, use SPSS to check your answers. Open SPSS and the data file (Ch01/EG01_018.POR)
Follow the steps listed above (for 1.53) moving v1 into the “Dependant List” box
(8) 1.68 Open the data file (Ch01/TA01_004.POR)
Follow the steps listed above (for 1.53) moving v1 into the “Dependant List” box
(9) 1.74 Open SPSS and the data file (Ch01/EX01_027.POR).
To do part a.), follow the steps listed above (for 1.53) moving measure into the “Dependant List” box.
Use your results from part a.) to complete part b.).
SECTION 1.3 (starting on p. 84)
(10) 1.79
(11) 1.81
(12) 1.83
(13) 1.87
(14) 1.88
(15) 1.99
Additional Suggested Homework Problems: (it is not necessary to turn these in.)
1.9, 1.51*,1.52*, 1.55, 1.60, 1.84*, 1.9 *indicates use of an applet .
NOTE: there is no reason for you not to do well on this assignment, you just have to ask for help. The graders and instructors are willing to explain any and all of the answers. REMEMBER, however, a copy of the existing solutions turned in as homework will be given a ZERO.
2 nd Note: you should ALWAYS read the solutions (they will be posted at 5pm Thursdays) because there will be extra comments and problems that are not necessarily part of the assignment. This will help in your understanding of the material which will help you come exam time.