Ms. Smith teaches three Algebra I classes that cover exactly thesame content. She is wondering if changing the order of some of thelessons would be beneficial to students. In class A, she teacheseverything in the traditional order. In class B, she decides toskip Chapter 1 as it is preliminary information that students mayalready know. In class C, she decides to do Chapter 5 prior todoing Chapter 3. She would like to know if there are anysignificant differences in the average scores of the threeclasses.
- Which test will be used?
- What are H0 (null hypothesis) and Ha (alternativehypothesis)?
- Calculate thes tatistic.
- What decision does this inform to make and why? (may use thecritical value in the chart or the calculated p-value, but mustindicate what are doing.)
- a one to two sentence conclusion that correctly responds to thequestion. 2 or 3 sentences to report your statistic ex.[χ^2(df)=1.1, p<.05]
Class A | Class B | Class C |
50.90 | 91.04 | 58.93 |
28.55 | 81.51 | 40.52 |
46.33 | 76.55 | 43.89 |
28.42 | 85.56 | 47.99 |
36.19 | 36.49 | 22.14 |
93.61 | 70.91 | 40.42 |
23.73 | 92.23 | 33.73 |
77.83 | 50.48 | 60.29 |
54.34 | 40.52 | 75.05 |
43.32 | 38.47 | 37.40 |
63.96 | 45.63 | 70.01 |
56.19 | 89.13 | 31.17 |
17.70 | 65.04 | 13.41 |
81.86 | 83.31 | 10.12 |
86.10 | 74.89 | 62.96 |
25.61 | 41.79 | 89.27 |
52.89 | 42.04 | 44.58 |
21.31 | 98.38 | 4.75 |
41.44 | 76.79 | 34.15 |
99.71 | 20.96 | 5.06 |
74.50 | 18.66 | 85.20 |
92.45 | 82.75 | 20.23 |
98.38 | 55.04 | 56.49 |
4.10 | 13.89 | 31.12 |
34.47 | 49.37 | 17.87 |
