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A researcher is interested in comparing the effectiveness of three different parts of therapy for anger problems. 8 participants are randomly assigned to 3 treatment conditions: Cognitive Therapy (CT), Cognitive-Behavioral Therapy (CBT), and Interpersonal Therapy (IT). All participants done the weekly treatment for 8 weeks. Participants take an anger test before and after the 8-week treatments. Every participant's difference score (= anger score after the treatment minus (-) anger score before the treatment) is shown in the following table. The 3 therapists in this experiment have equal educational levels and clinical experiences.
CT
CBT
IT
3
5
7
4
8
6
9
10
11
2
a. What statistical test should be used to examine the data?
b. Identify H0 and Ha for this study.
c. Conduct the appropriate analysis.
d. Should H0 be rejected? What should the researcher conclude?
There are two types of drivers, high-risk drivers with an accident probability of 2=3 and low risk drivers with an accident probability of 1=3. In case of an accident the driver su
The prevalence of undetected diabetes in a population to be screened is approximately 1.5% and it is assumed that 10,000 persons will be screened. The screening test will measure
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Show how the Normal bin width rule can be modied if f is skewed or kurtotic. Examine the effect of bimodality. Compare your rules to Doane's (1976) extensions of Sturges' rule.
The first step in this case is to ensure that you are adequately clear on the General Linear Model and its relationship to both ANOVA and regression. The distinction is approxim
Examine properties of good average with reference to AM, GM, HM, MEAN MEDIAN MODE
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Need statistic assignment help. Need by Monday, 26Th May. Gretl has to be used compulsory.
types of sampling method
Agency revenues. An economic consultant was retained by a large employment agency in a metropolitan area to develop a regression model for predicting monthly agency revenues ( y ).
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