On January 1, 2006, 5,000 healthy men beginning highly stressful jobs in LA County, CA, were enrolled in a follow-up study of relationship between job stress and hypertension (HTN). Medical histories and physical exams revealed that all subjects were normotensive at the time.  The study was concluded on 12/31/07.  Authors reported following statistics:                  10 men developed HTN after 6 months                15 additional men developed HTN after 1 year                20 additional men developed HTN after 18 months                100 men who had not developed HTN withdrew after 1 year   Based on this information, calculate incidence density and cumulative incidence and compare (NOTE: you can use person-years or person-months as person-time units).

Q: Female     Male Rarely or never use seat belt 206 323 Uses seat belt 1220 1157

A: Given,   Female Male Rarely or never use seat belt 206 323 Uses seat belt 1220 1157

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A:

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A: If for a Two-Way ANOVA, the number of treatments is 16, what is the corresponding degrees of…

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A: Note: As per the guidelines, in case of multiple subparts, answer to first three subparts will be…

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A: n1=n2=28 X1-bar=15.2 X2-bar=12.3 S1=2.5 S2=1.9

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A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.