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In a preliminary study, the U.S. Veterans Affairs Department found that 30.9% of the 81 soldiers who were near an accidental nerve gas release just after the 1991 Persian Gulf War had muscle and bone ailments, compared to a rate of 23.5% for the 52,000 Gulf veterans who were not near that area.
Use an appropriate one-tail test and the 0.10 level of significance in examining the difference between these two rates. Determine and interpret the p-value for the test.
Prepare a list of at least three job-related assets that you have and explain why and how these qualities would be useful to a potential employer.
an experiment was designed to estimate the mean difference in weight gain for pigs fed ration a as compared with those
What is (are) the mode(s)? Does it make sense to talk about the average for this data? Why or why not?
A pollster calls 500 randomly selected people and all 500 respond to her first question. Because the subjects agreed to respond, is the sample a voluntary response sample?
On what percent of days did it actually rain?- On what percent of days was rain predicted?- What percent of the time was the forecast correct?
Find the volume of the figure below (assume a right circular cylinder on bottom and half a sphere on top.
a construction company figures the cost of a project based on an average idle time of 68 minutes per worker per 8 hour
If a simple random sample of 80 seniors is taken, what is the probability that at most 64 of them will be accepted into college.
Why might a researcher use a quasi-experimental design rather than a true experimental design?- Why does having a control group eliminate the problems associated with the one-group pretest-posttest design?
Calculate and give an interpretation of the coefficients based on a one-unit change in each xi.
What is the probability that a randomly selected student will have a score of 80 or higher? If there were 97,680 students with scores higher than 91, how many students took the test?
What can you tell me about the direction, strength and significance of this association and What would you expect for somebody without any formal education whatsoever and what can you tell me about the nature of this relationship?
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