Got a tricky question? Receive an answer from students like you! Try us!

T-test and ANOVA Exercises - Assignment Example

Only on StudentShare
Pages 6 (1506 words)


PART 1 1. The number of employed women were 436 and the number unemployed were 524. 2. The total sample size is 436+524=960 3. The mean CES-D score in unemployed women was( 20.8965 +12.46) and that for employed was (15.8239 +10.13) 4. Leven’s test is an inferential statistic used to assess the equality of variances (squared deviations of the difference of raw scores and mean score for a variable) which is calculated for two or more groups…

Extract of sample
T-test and ANOVA Exercises

Thus, the null hypothesis of equal variances is rejected and it is concluded that there is a difference between the variances in the population.It is called heteroscadasticity.Some of the procedures typically assuming homoscedasticity are the anova , t-tests.Levene's test is often used before a comparison of means. When Levene's test shows significance, one should switch to generalized tests, free from homoscedasticity assumptions. Since the p value is less than 0.05 ( 0.000) in this case hence homoscadasticity or equal variances cannot be assumed 5. The computed t statistic is 6.95 which is more than the assumed or critical t statistic of 6.82 for assuming equal variance. The degree of freedom is hence retained as 957.51 and the p values as stated is <0.05 which is 0.000 6. ...
Download paper
Not exactly what you need?

Related Essays

Critical appraisal of the research reports
In the quantitative research, plenty of information was already available and features were classified, counted and statistical models constructed for the study. The qualitative research was subjective and usually related in the participant’s own words and the researcher was not aware of the information he was looking for. The researcher was well aware of what he was searching for in quantitative research and the study was well-designed before data was collected. Qualitative researches were recommended when new subjects were dealt with in research projects. When some amount of information…
12 pages (3012 words)
Nursing tools and strategies to assess cognition and confusion . Authors: Aird T, & McIntosh M.
It can be identified that the health care professionals access to the terms such as “confused” and “disoriented” while they are depicting the cognitive deficits and the levels of consciousness. However, these terms seem to be quite vague and are not capable of describing the actual symptoms that is experienced by the patients. Numerous studies on the similar topic have demonstrated that there is contradiction in the view of the word confusion and thus it is because of this inconsistency that can lead to misconception of the patient’s symptoms. Therefore, it is quite significant on…
AIC test and diabetes
From this study, it was found that A1C level of a patient provides a reliable measure of controlling chronic glycemia without the need for a timed sample or fasting, and it correlates highly with the long-term risk of diabetes-related complications and mortality. Most important, this test tool is more effective in detecting undiagnosed diabetes and there is a higher potentiality of using the measurements of AIC levels to screen type 2 diabetes (Choi et al, 2011). …
3 pages (753 words)
Demonstrate Enhanced Self Awerness, Interpersonal and Self-Managment Skills When Establishing and Maintaining Professional and T
Prior to conclusion, the student will reflect on his/her personal skills and highlight one action point for each that will benefit you in maintaining professional and therapeutic relationship. Literature Review The process of establishing a strong nurse-patient relationship could result from a constant or regular interplay or covert negotiation between the nurse and the patients until both parties are able to reach a mutual and satisfying relationship (Morse, 1991). Depending on the time spent between the nurses and the patients, nurses are expected to build trust and meet the individual needs…
3 pages (753 words)
Discuss the current status of the Electronic Health Record (EHR) in the United States. What still must be accomplished to make t
Due to the wide acceptance of the benefits to be reaped from such a system the American Recovery and Reinvestment Act was passed in 2009, which promoted a national combined health information system to be developed. (Jha et al, 2009) A recent study suggested that levels of adoption ranged from 5%-59%-the reason being that there is a wide difference amongst practitioners about what functionalities are constituted in an electronic health record. Keeping in line with this drawback the Institute of Medicine has outlined a list of prospective functionalities that relate to an electronic health…
Roy's Adapatation Model
Roy's Adaptation Model is the method by which was developed by Sister Callista Roy in 1976 is an Adaptation of Nursing Theory that has found itself gaining prominence over the passing of the decades. Using interrelated biological, psychological and social systems, the idea behind the model is to help an individual maintain the delicate balance between all these health aspects. Even though there is no assurance of finding a perfect balance between the needs of the individual, this theoretical framework at least provides a guide towards achieving a delicate balance of the personal needs of the…
2 pages (502 words)
Linear Regression Exercises
4) The coefficient of determination(R squared) is 0.09 it is statistically significant at P<0.001.This value means that 9% of the variation is related. Generally, the coefficient of determination (R square) is equal to the variation percent in one variable that is related to the variation in the other. 5) The standard error interpretation: In any mean, it is normally observed that every sample taken to estimate the unknown population parameter will always underestimate or overestimate the mean by certain amount (Bryman and Cramer, 1990). But interesting, as seen here, even if the population is…
5 pages (1255 words)