Hypothesis Testing

Essay by kelkinseyUniversity, Bachelor'sA+, September 2007

download word file, 5 pages 3.5

Hypothesis Test on Suicide"Suicide is a serious public health problem that devastates individuals, families, and communities" (SPAN USA, 2005). Suicide defined as taking one's own life. Suicide behavior is complex. "National Vital Statistics Report shows suicide is the 11th leading cause of death among Americans. Suicide results from complex interactions between biological, psychological, social, and environmental factors. In this study, the researchers examine the numbers of suicide death on the U.S. Mortality Report from 1998 to 2005" (CDC, 2004). The hypothesis suggested if the yearly mean number of suicide death is more than 26,000. The final statistical analysis indicates that this hypothesis not be rejected because it was below the upper critical value, nor could the researchers support the claim that the mean mortality rate of suicide has increased. This report shall describe A-Team's selection. The report shall discuss type of method used, formulate both a numerical and verbal hypothesis statement regarding our research issue, and perform the five-step hypothesis test on data pertaining to our selection.

Finally, the report shall describe the results of this test and explain how the use of hypothesis tests used can evaluate solutions to the problem. The findings indicate a substantial increase in homicide rates among young males from 2002 to 2003 and substantial increases in both homicide and suicide rates among males from 2000 to 2003.

"Research over the past several decades has uncovered a wealth of information on the causes of suicide and the strategies to prevent it. Many studies have identified factors that either increase or reduce the likelihood that a person will attempt or commit suicide. Centers for Disease Control and Prevention and National Center (CDC) used this information to develop and implement prevention programs to reduce the numbers of attempted and completed suicides" (CDC, 2004). The results of the...