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A committee of three is selected at random from five managers from accounting department and information technology department. What is the probability that the committee will contain at least two managers from accounts departments.
Give an example of using the distributive property for a negative monomial times a trinomial with different signs on the terms [for example: -3x(2xy + 3y - 2x)] and show each step of the distribution.
For a population containing N=902 individuals, what code number would you assign for:
Critically discuss the assumptions, if any, regarding a Chi-square test? What are the assumptions to apply linear regression?
Assume a normal distribution applies and alpha = 0.05 (Use Z table), find the Critical value for the alternative hypothesis:
A sports researcher gave a standard written test of eating habits to 12 randomly selected professionals, four each from baseball, football, and basketball. The results were as follows:
The weight of a product is normally distributed with a mean of four ounces and a variance of .25 "squared ounces." What is the probability that the randomly selected unit from a recently manufactured batch weighs no more than 3.50 ounces.
The analysis of variances produces df between = 3 and df within = 24. For this analysis, determine df total ?
The standard deviation of the sample is $3,000. Interpret your findings.
A certain brand of Green Energy light bulbs was advertised as having an average illumination life-span of 2,500 hours. A random sample of 50 bulbs burned out with a mean life-span of 2,470 hours and a sample standard deviation of 140 hours.
An occupational health study was carried out to evaluate the health status of workers. The response is forced expiratory volume (FEV), a measure of respiratory function
What's the expected value of sample information? How much might the physicians be willing to pay for a market study?
A researcher obtains t = 4.00 and MD = 9 for a repeated-measures study. If the researcher measures effect size using the percentage of variance accounted for, what value will be obtained for r2?
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