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Sample of 28 students, the sample correlation coefficient would be greater thanħ. Population of fifth graders were 0.60, what would be the probability that in a If the correlation between reading achievement and math achievement in the More than 1.5 points higher than the mean of the men? ( relevant section)Ħ. Selected randomly, what is the probability that the mean of the women will be Assume the scores are normally distributed. The mean for men is 4, and the standard deviation for both groups isġ.5. Assume that in the population, the mean for women is 5, One question asks whether animal research is wrong and isĪnswered on a 7-point scale. A questionnaire is developed to assess women's and men's attitudes toward usingĪnimals in research. (b) If the standard error of the mean is 50 for N = 25, what is it for N = 64? ( relevant section)ĥ. (a) If the standard error of the mean is 10 for N = 12, what is the standard error What term refers to the standard deviation of the sampling distribution? ( relevant section)Ĥ. (d) the probability that the mean of a sample of 16 scores will be either less than 95 or greater than 105 ( relevant section)ģ. (c) the probability that a sample of 64 scores will have a mean greater than 105 ( relevant section)
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(b) the probability that a sample of 25 scores will have a mean greater than 105 ( relevant section) (a) the probability that a single score drawn at random will be greater than 110 ( relevant section) Given a test that is normally distributed with a mean of 100 and a standard (a) What are the mean and standard deviation of the sampling distribution of the mean for N = 16? (b) What are the mean and standard deviation of the sampling distribution of the mean for N = 20? ( relevant section)Ģ. A population has a mean of 50 and a standard deviation of 6. You may want to use the " r to z' calculator" and the " Calculate Area for a given X" applet for some of these exercises.ġ. Prerequisites All material presented in the Sampling Distributions chapter