Finding significant z-scores. Consider a two-sided
Chapter , Problem 6.42(choose chapter or problem)
Finding significant z-scores. Consider a two-sided significance test for a population mean. (a) Sketch a Normal curve similar to that shown in Figure 6.9 (page 378), but find the value z such that P 0.05. (b) Based on your curve from part (a), what values of the z statistic are statistically significant at the a 0.05 level?
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