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Determine the critical region and critical values for z that would be used to test the null hypothesis at the given level of significance, as described in each of the following: (A) and , a = 0.01 (B) and , a = 0.10 (C) and , a = 0.05
Calculate the mean and standard deviation of the following data sets, then produce a five number summary and box plot of data.
Construct a 94% confidence interval for the true percentage of smokers among all people who completed four years of college.
The net profit of an investment is normally distributed with a mean of $10,000 and a standard deviation of $5,000. The probability that the investor's net profit will be between $12,000 and $15,000 is _____________.
Using a separate 2 by 2 table, compute predictive value positive and predictive value negative for population of 1,000 drug users.
What is the Chi-square test? Where can you apply it? Please site an example of how it was used and the outcome of the test. I think this could help me better than the book, it is difficult to understand.
To test whether the significant difference between two proportion test using large sample test.
Describe the kinds of statistical software that are available to healthcare professionals.
An olympic archer is able to hit the bull's-eye 70% of the time. Assume each shot is independent of the others. If she shoots 6 arrows, what is the probablitly that she never misses?
Find the zeros of the function in terms of e, f, and g. Under what condition would the zeros of the given function be two distinct real values?
Find a 95% confidence interval for the true proportion of patients who experienced cotton mouth. Show your calculations and/or explain the process used to obtain the interval.
For the growth-oriented funds the mean increase is $1,090 with a standard deviation of $55. At the 0.01 significance level is there a difference in the mean yield of the two funds?
The sameple you found that 114 of those adults sampled over the age of 24 smoke. Develop a 95% condience interval for the current porportion of adults over the age of 24 who smoke.
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