MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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For a population with σ = 8, X=13 and a z-score = 2.21, find the value of µ
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- A population has µ = 50. Which value of σ would make X = 55 a central, representative score in the population distribution? σ = 1 σ = 6 σ = 2 This is impossible to determine based on the information provided.arrow_forwardFor a population with a μ = 80 and σ = 10 find the X value (score) that corresponds to each of the following z-scores. Z = +1.00 Z = +.20 Z = +1.50 Z = -.50 Z = -2.00 z = -1.50arrow_forward3. For a population with H = 60 and 0 = 12, find the z-score corresponding the following X values: X = 66arrow_forward
- A repeated measures study with n=26 participants produces a mean difference of M D = 3 points, SS=500 for the difference scores, and t=2.50. Calculate Cohen's d and r square (r2) to measure the effect size for this study.arrow_forwardA sample of n = 64 scores has a mean of M = 68. Assuming that the population mean is p = 60, find the z-score for this sample: If it was obtained from a population with o = 16 Z = If it was obtained from a population with o = 32 Z = If it was obtained from a population with o = 48 Z =arrow_forwardGiven that x̄ = 25, n = 49, and σσ = 5, then we can be 95% confident that the true mean,μμ, lies between the values andarrow_forward
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