Choose the statement that is FALSE. Group of answer choices When sampling for means and thinking about the Central Limit Theorem, the n should always be >30. Reducing the variation of a process will increase the width of a given Confidence Interval relative to that process. A 95% confidence interval is wider than a 90% confidence interval When estimating the standard deviation in calculating confidence intervals, make sure you use the t tables.

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.

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