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Question: A recent study examined the number of unemployed people in 5 cities who are actively seeking employment. AT alpha = .05, is there a difference in the number based on level of education earned?
H.SDip ColIDEg Postgrad deg49 23 743 49 3851 54 23108 87 5268 28 26
Students whose test scores are in the upper 10% are eligible for scholarship opportunities for college. What is the test score that corresponds to the upper 10% cutoff point of the probability distribution?
At the .01 significance level, is there a relationship between job pressure and age?
Use the Excel COUNTIF function to determine the number of tires that last longer than 40,000 miles. What is your estimate of the percentage of tires that will exceed 40,000 miles?
If you perform step 3 correctly you will get a negative value. These are absolute valued tests so Ignore the - sign. These problems depend on the same normal curve
In a survey of adults, 68% thought that DNA test for identifying an individual were very reliable. You randomly select 24 adults and ask each if he or she thinks DNA test for identifying an individual are very reliable.
Study have in distinguishing between case-fatality rates in 1990 and 2000-2005 if a two-sided test with significance level .05 is planned? B. How large a sample is needed in the previous problem to achieve 90% power?
You wish to be 95% confident and have an error of 0.4 mpg. The standard deviation is estimated at 1.8. How big must the sample be?
How does the MHMR compare to the state's figures on providing services to first-time admissions - Hypothesis test for one sample mean
the study found 87 per cent of 1500 australians surveyed would support colour-coding on packaged food to indicate
Suppose it is known that a new treatment is successful in curing muscular pain in 75% of the cases. If it is tried on 9 patients, find the probability that fewer than 7 patients are cured.
Find a 95% confidence interval for the mean amount of money µ spent at the waiter's tables.
part aanswer all of these questions using r commander. include all graphs outputs from r commander .this assignment
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