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Millie and Senta Meter have recently taken Pre and Post test in achievement. The test were normally distributed. Millie's percentile rank changed from 57.93 to 77.34. Senta's changed from 1.07 to 4.95. Which of the following states is correct.
A. Millie improved more the Senta.
B. Senta improved more then Millie.
C. They improved the same amount.
At times we can generate a regression equation to explain outcomes. For example, an employee's salary can often be explained by their pay grade, appraisal rating, education level, etc.
Find out a linear equation in the form P = mt + b (y = mx + b) that gives the population, P, t years from 2010.
What's the probability that among three randomly selected high school students
Probability values based on normal distribution - old exit exam followed a normal distribution
Confidence interval for the true mean and Evaluate the 95% confidence interval for the true mean advertising expense?
Letting μ be the mean composite satisfaction rating for the gaming console, we find that the test should be H o : μ ≤ 42 versus H a : μ > 42
Prepare an ANOVA table and test the null hypothesis of no linear relationship between the two variables.
At α = .05, is there a difference in variances? Illustrate all steps clearly, including illustration of the decision rule.
Make a forecast for 2004, using either the fitted trend model or a judgment forecast. Why is it best to ignore earlier years in this data set?
Harry and Melissa Jacobson produce handcrafted furniture in a workshop on their farm. They have obtained a load of 600 board feet of birch from a neighbour and are preparation to produce round kitchen tables and ladder-back chairs during the next ..
Assume that female students' heights are normally distributed with a mean given by µ = 67.2 in. and a standard deviation given by σ = 3.6 in.
what size sample should the director choose if she wishes to estimate the mean number of admissions per 24-hour period to within 1 admission with 99 percent reliability.
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