Z-score value in normal distribution is negative
When the z-score value in a normal distribution is negative, the body is on the right-hand side of the distribution.
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If, in a sample of n-168 selected from left-skewed population, X =67 and S= 24, would you use the T test to test the null hypothesis Ho: u=60?
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The dean of business school desires to form executive committee of 3 from among the 50 tenured faculty members. The selection is to be random and at the school there're 4 tenured accounting faculty. Determine the probability that the committee wil
A sample of n = 16 scores is chosen from population with m = 100 and s = 32. If the sample mean is M = 104, what is the z-score for this sample mean?
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A normal distribution has a mean of µ = 80 with s = 20. What score separates the lowest 30% of the distribution from the rest of the scores?
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