MM207 Final Project
The Final Project is worth 105 points. Please download this document to your computer
and save it using the naming convention specified in the course syllabus. For the Final
Project you will be using the MM207 Student Data Set, the survey codebook, and
StatCrunch as necessary. You should enter your answers/responses directly after the
question. There is no need to retype the project.
After completing and saving the project, submit your project in the Final Drop Box.
Click this link to access the MM207 Student Data Set. When the page loads you will need
to click on MM207 Student Data Set on the left side of the page.
MM207 Student Data Set
Name:
1. Using the MM207 Student Data Set:
a) What is the correlation between student cumulative GPA and the number of hours spent
on school work each week? Be sure to include the computations or StatCrunch output to
support your answer.
b) Is the correlation what you expected?
c) Does the number of hours spent on school work have a causal relationship with the
GPA?
d) What would be the predicted GPA for a student who spends 16 hours per week on
school work? Be sure to include the computations or StatCrunch output to support your
prediction.
2. Using the MM207 Student Data Set:
a) Select a continuous variable that you suspect would not follow a normal distribution.
b) Create a graph for the variable you have selected to show its distribution.
c) Explain why these data might not be normally distributed.
d) Select a second continuous variable that you believe would approximate a normal
distribution
e) Create a graph to show its distribution.
f) Explain why these data might be normally distributed.
.
3. Jonathan is a 42 year old male student and Mary is a 37 year old female student thinking
about taking this class. Based on their relative position, which student would be farther away
from the average age of their gender group based on this sample of MM207 students?
MM207 Final Project
4. If you were to randomly select a student from the set of students who have completed the
survey, what is the probability that you would select a male? Explain your answer.
5. Using the sample of MM207 students:
a) What is the probability of randomly selecting a person who is conservative and then
selecting from that group someone who is a nursing major?
b) What is the probability of randomly selecting a liberal or a male?
6. Facebook reports that the average number of Facebook friends worldwide is 175.5 with a
standard deviation of 90.57. If you were to take a sample of 25 students, what is the
probability that the mean number Facebook friends in the sample will be 190 friends or
more?
7. Select a random sample of 30 student responses to question 6, "How many credit hours are
you taking this term?" Using the information from this sample, and assuming that our data set
is a random sample of all Kaplan statistics students, estimate the average number of credit
hours that all Kaplan statistics students are taking this term using a 95% level of confidence.
Be sure to show the data from your sample and the data to support your estimate.
8. Assume that the MM207 Student Data Set is a random sample of all Kaplan students;
estimate the proportion of all Kaplan students who are male using a 90% level of confidence.
9. Assume you want to estimate with the proportion of students who commute less than 5 miles
to work within 2%, what sample size would you need?
10. A professor at Kaplan University claims that the average age of all Kaplan students is 36
years old. Use a 95% confidence interval to test the professor's claim. Is the professor's
claim reasonable or not? Explain.
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