The data set provided reflects two different forms from a recent statistics exam (completely made up). A
Question:
The data set provided reflects two different forms from a recent statistics exam (completely made up).
| A | 97 |
| A | 61 |
| A | 64 |
| A | 88 |
| A | 98 |
| A | 85 |
| A | 72 |
| A | 65 |
| A | 100 |
| A | 68 |
| B | 86 |
| B | 64 |
| B | 69 |
| B | 94 |
| B | 82 |
| B | 84 |
| B | 84 |
| B | 63 |
| B | 50 |
| B | 60 |
We want to determine whether not the version a student got was different. The versions were randomly provided to students to avoid any bias. Upload the data to Statkey to complete the following questions.
a) Find the sample statistic important for our study. Be sure to label which number represents which group and use appropriate notation..
b) Using StatKey, determine the SE.
c) Use the SE method, find the 95% confidence interval.
d) Find the 98% confidence interval using bootstrap distributions. Snip/Screenshot your StatKey output including all necessary information.
e) Based on your confidence intervals from c and d, what conclusion can we make about whether or not the forms provide different scores?
Expert Answer:
