Question
1. Students in LEAD 5700 took a pre-test of their statistics knowledge, and a final exam testing their statistics knowledge. The professor hypothesizes that the
1. Students in LEAD 5700 took a pre-test of their statistics knowledge, and a final exam testing their statistics knowledge. The professor hypothesizes that the students' pre-test scores will be positively related to their final exam scores. Is this hypothesis accurate? Use the students' pre-test scores (PreScore) and the students' final exam scores (FinalScore) to compute a Pearson R correlation to determine the validity of this hypothesis.
a. What is the professor's research question?
b. Is this hypothesis accurate? How can you tell?
c. Create a scatterplot of the correlation between PreScore and FinalScore.
| FinalScore | Questions | COEProgram | Gender | StatView1 | StatView2 | StatView3 | StatComfort | PreScore | Race/Ethnicity |
| 87.00 | 1.00 | 1 | 0.00 | 4.00 | 3.00 | 4.00 | 3.67 | 80.00 | 1.00 |
| 100.00 | 1.00 | 2 | 0.00 | 4.00 | 5.00 | 5.00 | 4.67 | 90.00 | 3.00 |
| 87.00 | 0.00 | 1 | 0.00 | 4.00 | 4.00 | 4.00 | 4.00 | 67.00 | 2.00 |
| 99.00 | 1.00 | 3 | 1.00 | 5.00 | 5.00 | 1.00 | 3.67 | 88.00 | 2.00 |
| 81.00 | 0.00 | 1 | 1.00 | 2.00 | 2.00 | 2.00 | 2.00 | 67.00 | 4.00 |
| 54.00 | 0.00 | 1 | 0.00 | 1.00 | 1.00 | 3.00 | 1.67 | 49.00 | 4.00 |
| 81.00 | 0.00 | 2 | 1.00 | 3.00 | 2.00 | 2.00 | 2.33 | 80.00 | 5.00 |
| 96.00 | 1.00 | 2 | 0.00 | 4.00 | 3.00 | 3.00 | 3.33 | 80.00 | 5.00 |
| 90.00 | 1.00 | 3 | 0.00 | 3.00 | 3.00 | 3.00 | 3.00 | 87.00 | 5.00 |
| 72.00 | 0.00 | 1 | 1.00 | 1.00 | 1.00 | 2.00 | 1.33 | 70.00 | 5.00 |
| 96.00 | 1.00 | 3 | 0.00 | 4.00 | 4.00 | 4.00 | 4.00 | 78.00 | 1.00 |
| 98.00 | 1.00 | 3 | 0.00 | 5.00 | 5.00 | 4.00 | 4.67 | 79.00 | 1.00 |
| 78.00 | 0.00 | 1 | 1.00 | 2.00 | 2.00 | 2.00 | 2.00 | 69.00 | 4.00 |
| 66.00 | 0.00 | 2 | 1.00 | 2.00 | 2.00 | 2.00 | 2.00 | 69.00 | 4.00 |
| 89.00 | 0.00 | 3 | 1.00 | 5.00 | 4.00 | 5.00 | 4.67 | 80.00 | 1.00 |
| 90.00 | 1.00 | 1 | 1.00 | 4.00 | 4.00 | 5.00 | 4.33 | 80.00 | 1.00 |
| 88.00 | 1.00 | 1 | 1.00 | 4.00 | 4.00 | 4.00 | 4.00 | 79.00 | 5.00 |
| 95.00 | 1.00 | 3 | 0.00 | 5.00 | 5.00 | 5.00 | 5.00 | 90.00 | 5.00 |
| 100.00 | 1.00 | 2 | 1.00 | 4.00 | 3.00 | 3.00 | 3.33 | 93.00 | 3.00 |
| 80.00 | 0.00 | 2 | 0.00 | 3.00 | 3.00 | 3.00 | 3.00 | 80.00 | 2.00 |
| 70.00 | 1.00 | 1 | 1.00 | 2.00 | 2.00 | 3.00 | 2.33 | 69.00 | 2.00 |
| 99.00 | 1.00 | 3 | 0.00 | 4.00 | 4.00 | 4.00 | 4.00 | 96.00 | 1.00 |
| 100.00 | 1.00 | 3 | 1.00 | 5.00 | 5.00 | 5.00 | 5.00 | 90.00 | 2.00 |
| 87.00 | 1.00 | 3 | 1.00 | 3.00 | 4.00 | 3.00 | 3.33 | 80.00 | 2.00 |
| 85.00 | 1.00 | 2 | 1.00 | 3.00 | 3.00 | 2.00 | 2.67 | 80.00 | 5.00 |
| 45.00 | 0.00 | 2 | 1.00 | 1.00 | 2.00 | 2.00 | 1.67 | 50.00 | 4.00 |
| 65.00 | 0.00 | 2 | 0.00 | 1.00 | 1.00 | 2.00 | 1.33 | 60.00 | 4.00 |
| 77.00 | 0.00 | 1 | 0.00 | 3.00 | 3.00 | 4.00 | 3.33 | 70.00 | 3.00 |
| 79.00 | 0.00 | 1 | 0.00 | 2.00 | 2.00 | 2.00 | 2.00 | 78.00 | 2.00 |
| 92.00 | 0.00 | 1 | 1.00 | 4.00 | 4.00 | 5.00 | 4.33 | 88.00 | 5.00 |
| #NULL! | #NULL! | #NULL! | #NULL! | #NULL! | #NULL! | #NULL! | #NULL! | #NULL! | #NULL! |
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started
An Introduction To Categorical Data Analysis
Authors: Alan Agresti
2nd Edition
0470653205, 9780470653203
