Statistics - Hypothesis Testing for Two Groups
oliviabAssignment attached.
End of chapter questions for textbook Statistics Alive, 2nd ed. IBM SPSS 21 needed as well.
Modules 19, 20, 21, 22, and 23
Examples:
- In two separate studies, the actual difference between the means of a treated group and an untreated group is 3 points. However, in one study, the σM1-M2 is very large and so the 3 points is not found to be significant. In the other study, the σM1-M2 is very small and so the 3 points is found to be significant. What might have caused this big difference in the σM1-M2 for the two studies?
- In a study of the effect of a new drug on the alleviation of asthma symptoms, the σM for symptom relief in the patient group that received the new drug is 1.45, and the σM for symptom relief in the group that did not receive the new drug is 1.22. Calculate the σM1-M2.
- Manually enter the 18 scores from the depression example in Module 20 into the SPSS Data View spreadsheet. Data entry for a t test with equal sample sizes is not intuitively obvious. In the textbook, the data are set up as two groups of 9 clients. In SPSS, all 18 scores (9 + 9) are entered in a single column. Then their group membership (medication vs. counseling) is entered in the second column. Thus, enter the data as follows:
- 10 years ago
- 20
Answer(0)
Bids(0)
other Questions(10)
- Genaral Accounting P4
- essay>>
- ECO 550 Entire Course ( ECO 550 Assignment 1 to 4 )
- SPE 300 Week 4 DQ 1 and DQ 2
- LDR 301 Week 1-5 all Assignments Small Business Leadership 2#
- CJA 484 Week 4 DQ 3 and DQ 4
- HCS 490 - Week 5 - Government Regulatory Agencies Choice Presentation - Instructor's Feedback
- Perfect Competition and the Supply Curve
- Problem 2-3A On April 1, 2012, Kathleen Alvarez established an interior decorating business, Intrex Designs. During the month,
- The GDP fails to capture changes in the availability of leisure time and often fails to reflect changes in the...