For the following, Use the five-step approach to hypothesistesting found on page 8-16. It states. You can use excel to computethe data or you can do it by hand. The YouTube videos provided inthe links will walk you through the steps to complete the followingproblems.
- State the hypothesis and identify the claim.
H0:
H1:
- Find the critical value and determine what error level to use.For all the problems on this homework use an alpha level of .05Determine if the test is directional or non-directional.
- Compute the test Value for the student t-test
- Make a decision to reject or fail to reject the nullhypothesis.
- Summarize the results
Problem #1 you have eight students who you randomly assign to atreatment group in a chemistry class that received a new method ofinstruction (Motivational Instruction). You randomly assign eightstudents from a chemistry class that did not receive the new methodof instruction. You want to determine if a new method ofinstruction has an effect on final semester grades. You want todetermine if the final grade scores are higher for the treatmentgroup than they are for the group that did not receive the newinstruction method. The data are as follows: using the five-stepapproach and the data provided complete the five steps. You willuse a t-test for independent groups with an alpha level of .05report the P value as well.
Group 1Â Â Â Â Â Â Â Â Â Group 2
67Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 88
72Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 92
80Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 78
57Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 82
81Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 97
71Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 100
65Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 90
74Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 88
Bonus: Worth 10 extra points and must answer both parts toreceive the bonus. What are the independent and dependent variablesin this research project?
