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A random sample of 113 felons convicted of nonviolent crimes in a state prison system completed a program designed to improve their education and work skills before being released on parole. Fifty-eight eventually became repeat offenders. Is this recidivism rate significantly different from the rate for all offenders in that state (57%)? Summarize your conclusions in a sentence or two.
A box contains six parts. Two of the parts are defective and four are ok. If three of the six parts are selected from the bin, how large is the sample space?
test scores for a statistics class had a mean of 79 with a standard deviation of 4.5. test scores for a calculus class
Determine the sample proportion, p, of successful people. If the population proportion is 0.70, determine the standard error of the proportion.
Note that if only a single batch of pulp was produced under each preparation method and split into 12 sub-batches for the cooking factor, this would be an example of pseudo-replication. Why?
Estimate the proportion of low birth weight infants whose mothers experienced toxemia during pregnancy. Use 95% confidence level.
We don't believe that claim, and roll the die 200 times to test an appropriate hypothesis. Our P-value turns out to be 0.03. Which conclusion is appropriate? Explain.
a binomial probability is given. write the probability in words. then use a continuity correction to convert the
What is wrong with this design? What confounds could be leading to the results of improved memory and problem-solving skills?
the ceo of a software company is committed to expanding the proportion of highly qualified women in the organizations
Find a 99% confidence interval for the true mean match\ length for grass courts at Wimbledon.- Find a 99% confidence interval for the true mean match length for clay courts at the U.S. Clay Court Championships.
One sided or two? In each of the following situations, is the alternative hypothesis one-sided or two-sided? What are the hypotheses?
You have been hired as a consultant to Medlark. Your job is to determine how many tickets to sell. Explain your solution completely and write your recommendation to the company.
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