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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?
Suppose a fair coin is flipped n times and random variable Y counts the number of times heads occurs. - What is the entropy of Y in bits?
how many ways is it possible to observe a sample of n7 observations from a population of n10 observations in which the
In a study to compare the perceived effects of two pain relievers, 200 randomly selected adults were given the first pain reliever, and 93% indicated appreciable pain relief. Of the 450 individuals given the other pain reliever, 96% indicated expe..
Assume that the number of calories in 12-ounce soda cans is normally distributed. State the null and alternative hypotheses to test the manufacturer claim.
At the .05 level of significance, is there a difference in the mean number of months before a raise was granted among the four CPA firms?
STAT 2800 Project - "So You Want to be an Entrepreneur? - Develop a timeline of the tasks that need to be accomplished in order to make your company profitable. Build in as much efficiency as possible by completing tasks in parallel
Hypothesis test for the difference between two means - To make the data comparable, certain features, such as the deductible amount and limits of liability, are standardized.
Scientist does n ot believe that water ph is 7. She wants to test the null hypothesis that the true level of ph is 7 at the .05 significance level. Her alternative hypothesis is that the water does not have a ph of 7. Which p-value will she reject..
This shuttle component functions successfully provided that at least one of the n systems functions properly. Find the probability that this shuttle component functions successfully if n - 2.
After hearing about your decision-analysis course, he asks you whether you have learned anything that might help him in his decision. What kinds of is sues are important in deciding whether to buy a retail business? Describe how he might use sensi..
The probability that a new advertising campaign will increase sales is assessed as being 0.60. The probability that the cost of developing the new ad campaign can be kept within the original budget allocation is 0.50.
Create a 95% confidence interval for proportion of highly educated women who left careers for family reasons and who wish to return to work.
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