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The source of federal government revenue for a specific year is 50% from individual income taxes, 32% from social insurance payroll taxes, 10% from corporate income taxes, 3% from excise taxes and 5% other. If a revenue source is selected at random, what is the probability that it comes from individual or corporate income taxes?
Assuming these data are from two independent groups, calculate dfX, dfY, and dftotal for the data above. Determine the critical values for t based on the df you calculated for the question above, assuming a two-tailed test with a p level of 0.05.
Whenever the calculated value of t is equal to or greater than the tabled value of t, for a given number of degrees of freedom, then
What would you recommend Taylor do to cut back its labor cost? (Illustrate using an ABC plan.)
A company is creating 5 new divisions and 8 managers are eligible to be appointed head of a division. With 8 managers trying for 5 jobs, how could the five new heads be arranged?
A researcher conductued a study of the access speed of 35 hard drives and concluded that his maximum error of estimate was 35. If he were to conduct a second study to reduce the maximum error of estimate to 7, about how many hard drives should he ..
There are 4 entrances to a building in Philadelphia. The bldg maintenance super would like to know if the entrances are equally utilized. To investigate, 400 people were observed entering the building.
A company ships computer components in boxes that contain 20 iteams. Assume the probability of a defective component is .4. use the geometric distribution to find the probability that the first defect is found in the third or fourth component test..
A component has an exponential time-to-failure distribution with a mean of 10,000 hours. The component has already been in operation for its mean life. What's the probability that it will fail by 15,000 hours?
The average number of miles that 90 truckers drove in a day was 540.0 with a standard deviation of 40 miles. What is the 99% confidence interval of the true mean number of miles driven by all truckers?
A pharmaceutical company is testing the effectiveness of a new drug for lowering cholesterol. As part of this trial they wish to determine whether there is a difference between the effectiveness for women and for men. At a=5, what is the test valu..
Test whether there is significant difference in the test anxiety level of the three groups using nonparametric test.
Find the value of q-hat from proportion and degrees of freedom used to find the t-score.
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