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Statistics Coursework

Trends in obesity over the last 20 years and implications for the future
Data collected from the Behavioral Risk Factor Surveillance System (BRFSS) indicates that within a period of 1985-1995 there has been an increase in the BMI from a level of 29.2 to 34.4 and there has been an increase in the percentage from a magnitude of 8.6 to 15. The correlation between overweight and many of the chronic diseases as well as various obnoxious health outcomes has made this a serious health concern. Obesity as a factor also gets associated with nation’s burgeoning health care
Pages: 8 (2000 words), Coursework
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Independent Sample t-test Using SPSS
That is, it tests the homoscedasticity or null hypothesis of equal population variances, also called the homogeneity of variance. Consequently, there are three possible instances where testing variance equality is a major concern. The first instance is when drawing inferences about population variances due to scientific interests. The second is when suspecting heterogeneity of variances in a t-test (or ANOVA), and the third is when we have concerns about heterogeneity of variances in t-test
Pages: 4 (1500 words), Coursework
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