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Criminologists have long debated whether there is a relationship between weather conditions and the incidence of violent crime. The author of the article "Is There a Season for Homicide?" (Criminology, 1988: 287-296) classified 1361 homicides according to season, resulting in the accompanying data. Test the null hypothesis of equal proportions using α = .01.
q1. listed below is the net sales in million for home depot inc. and its subsidiaries from 1993 to 2004.yearnet
A survey of middle-aged men reveals that 28% of them are balding at the crown of their heads. Moreover, it is known that 18% of all middle-aged men who have this balding pattern will suffer a heart attack in the next 10 years.
A researcher wishes to estimate, with 95% confidence, the population proportion of adults who say chocolate is their favorite ice cream flavor. Her estimate must be accurate within 3% of the population proportion.
Plot the data on fruit and vegetable consumption. Discuss the underlying causes that might explain the trend or pattern. Fit a linear trend to the data.
A quarterback on a football team has a pass completion rate of 0.62. If, in a given game, he attempts 16 passes, what is the probability that he will complete
components used in a digital slr camera are manufactured with nominal dimension of 0.3 mm and lower and upper
What are the advantages of ANOVA over the mean test and what are the disadvantages? Where would I use this in my everyday life?
Attitude change is thought to result from the anxiety produced under conditions of cognitive dissonance. The data below represent the anxiety scores of subjects in a dissonance study.
a discrete random variable has moment generating function mxt e2et-1.find exfind
Proportional to xi2, that is Var(εi)=σ2 xi2. Suppose that we use the transformation y'=y/x and x'=1/x. Is this a variance-stabilizing transformation?
Consider the double-sampling plan for which both sample sizes are 50. The lot is accepted after the first sample if the number of defectives is at most 1, rejected if the number of defectives is at least 4, and rejected after the second sample if ..
Since she is allowed to reserve one time if her first serve is out what should her serving strategy be?
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