Math 103

Assignments

Assignments are due in class on the due date.

Please show your work.  Problems with only an answer may not receive credit (homework and exams)

Please note that answers to some questions may be found in the back of the book.  When turning in an assignment, please turn in only that assignment - not any late assignments you might have.  Late assignments should be turned in to me separately, and late assignments can not be accepted after the graded assignment is returned to the class.

No homework can be turned in past our last day of class (Tuesday, May 1) in class

• Assignment #9, due Tuesday, April 17. Please work
• On pages 275 - 280, problems 1(a), 2 - 4, 9 - 16, 18, 19, 21, 22, 27, 29, 30, 32, 33, 35, 36, 45 - 47 (all ranges inclusive).
• Assignment #8, due Friday, April 6. Please work
• On pages 203 - 206, problems 4, 5, 6, 7, 15, 16, 17, 27, 28, 31, and 36.  Please work problem 15 by hand, but you are welcome to do the other problems (and all the graphs) using MiniTab.
• On pages 237 - 243, problems 3, 4, 5, 7, 18, 19, 22, 32, 36, 37, 42, 44, 45, and 46. 
• Assignment #7, due Tuesday, April 3.
  Please note that this exercise is due the week following exam #2, but that it covers material which will be on that exam. Please have the bulk of this exercise completed in time to ask questions on it during our review for exam #2.  This is an exercise in report writing, using Minitab.

• Download the current Math 160 student survey into your workspace (or simply open the student survey worksheet from the \\alexandria\stats file store).
• Pick one of the quantitative variables in the student survey and use MiniTab to produce a histogram and a stem-and-leaf plot.  Describe the shape of the distribution (symmetric, not symmetric, skewed left or skewed right, any outliers) that you observe in the histogram and stem plot (see notes on presentation below).
• For the purposes of this assignment, a quantitative variable is one for which taking averages and standard deviations makes sense.  For example, Gender, Class, and Finaid, while recorded as numbers, are not quantitative variables.
• Now, for the variable that you picked for the above, find (using Minitab) the five number summary, average, and standard deviation, and report on these numbers, using them to comment further on the distributions.  Include a box plot.
• Now, pick two quantitative variables you think might be related in the survey.  Pick your favorite graphical representation (histogram, stem plot, box plot) and include the basic numerical information about the variables (including averages and standard deviations of both variables)
• Have (and include) Minitab produce a scatterplot with regression line.  Give a description of the form and strength of the relationship.
• Double-check that Minitab correctly found the equation of the linear regression lines by using the computed value of Pearson's Correlation Coefficient (r) together with the variable averages and standard deviations to calculate the equation of the regression line.  Compare your answer to the one produced by Minitab.  They should be close (but may not be exactly identical).  How does the calculation of r correspond with your assessment of the strength of the relationship?
Turn in: A printed document (us MS Word or something equivalent).  Graphs and Minitab calculations should be copied from Minitab and pasted into the text of your document and not included as appendices to it (we'll cover how to do this in Thursday's lecture (March 8)).  Handwritten responses will not be accepted for this exercise.
• Assignment #6, due Tuesday, March 6.  Please work
:
• On pages 175 - 181, problems 1, 5, 7, 8, 10, 13, 20 - 24 (inclusive), 31, 32, 37, 41, and 42
• Assignment #5, due Monday, February 27 (please note change in due-date). Please work:
• On pages 139 - 141, problems
• 1 - 4
• 6 - 9
• 11 - 18
• 22, 23, 27, 28
• 32, 33, and 35
• Assignment #4, due Tuesday, February 14. Please work:
• Pick your major (or a major you are interested in).  List all of the courses required for the program in which you are interested (you do not need to consider all options), including all prerequisite courses.  Draw the order-requirements digraph for this major.
• On pages 91 - 94, problems 5, 6, 11, 14, 16, 31 and 32
• Assignment #3, due Friday, February 10. Please work
• On pages 58 - 64, problems 42 (a and b), 43, 44, 48, 50, 52, 53, 56, 70, 71, and 76
• Assignment #2, due Friday, February 3.  Please work
• On pages 25 - 27, problems 33, 35, 36, 37, 40, and 50
• On pages 55 - 59, problems 2, 5, 19, 35, 36, 38, 39 and 40
• Assignment #1, due Friday, January 27. Please work
  • On pages 22 - 23, problems 1, 3, 4, 5, 10, 19, 20, 21, 23, 24, 26, 27, 28