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The normality assumption states that the population of X and Y scores form a bivariate ("two variable") normal distribution, such that
A) the population of X and Y scores are normally distributed
B) for each X score, the distribution of Y scores is normally distributed
C) for each Y score, the distribution of X scores is normally distributed
D) all of the above
describe the characteristics of the f distribution. provide examples.what are we testing when we test for two
Choice of exponential smoothing constant w has little or no effect on forecast values using exponential smoothing.
Drug testing of job applicants - In 1990, 5.8% of job applicants who were tested for drugs failed the test. At the 0.01 significance level, test the claim that the failure rate is now lower if a simple random sample of 1520 current job applicants ..
A technician services machines as companies in the Phoenix area. Depending on the type of malfunction, the service call can take exactly 1, 2, 3, or 4 hours. The different types of malfunctions occur at the same frequency.
Determine the variance of firm's profit for the month.
the length of time in seconds that a user views a page on a web site before moving to anotherpage is a lognormal random
the average math sat score for males was 519 with a standard deviation of 105. for females avg math score was 484 with
an exit poll of 1000 randomly selected voters found that 515 favored candidate a. is the race too close to call? answer
assume that womens heights are normally distrubted with a mean 62.4 inches and a sd given by 2.6 inch.a. if a woman is
1. construct a frequency distribution table to organize the following set of data109nbspnbsp 114nbspnbsp 111nbspnbsp
You work at a facility and want to perform an assessment of your safety culture – this would involve multiple topics of questions expecting answers like agree, tend to agree, not sure, tend to disagree, disagree.
The mean time to expose a single panel in a circuit-board plant is two minutes with a standard deviation of 1.5 minutes. What is the natural coefficient of variation?
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