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1) A researcher studying correctional treatment on 192 sex offenders composed of 10 females and 182 males finds that 11 males along with 1 female had reoffended. He then calculates the percentages and finds that 10% of females and 6% of males had reoffended and concludes that female sex offenders were more likely to reoffend than male sex offenders. What is wrong with his conclusion?
2) A researcher evaluating a gun training program in a large American city found that rapes dropped by 90% in the year following the training. Researchers looking at the same data but expanding the time frame to include 5 years before the training and 5 years after the training found that the rape rate in the same city had fluctuated wildly over that decade including zero rapes being recorded in the city two years before the gun training was implemented. Thirty years after this research advocates still cite the first study and ignore the second study. What's the moral of this story?
using the data provided x the quality of the speed of execution and y overall satisfaction with the electronic trades
a study showed that the correlation coefficient for iqs of husbands and wives was 0.6. in each case determine whether
Please assist regarding an index based on how people feel about the economy. In this case, the base was 1985 and set at 100.
a campus club sells 500 raffle tickets at a price of 2 each. the raffle offers one 100 dollar prize two 50 prizes and
Your answers must be presented in task number order and be clearly labelled with the appropriate task number. Answers to each task must start on a new page.
Selected data for the company's operations last year follow (all currency values are in thousands of rupiahs):Assume that the company uses absorption costing. Compute the unit product cost for 1 gamelan.
the average life of a certain type of small motor is 10 years with a standard deviation of 2 years. the manufacturer
Infomercials often peddle products under the guise of "studies show," While some of the products are surprisingly good, many aren't.
A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location. Research question: At α = . 05, does vehicle type vary by mall location?
Assume the population is normally distributed, the confidence level is 95%, n = 12, and σ is unknown.
A professor needs to select a volunteer for a project .which of the following would not be an example of a simple random sample ?A)he chooses a number between 00 and 99.
let x equal to the grade of a student in a stat course. suppose that x is nu 100. using the traditional method of
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