The critical value zα (pronounced, zee-sub-alpha) is the number of standard deviations above the mean for which 100α% of the standard normal curve is above (and 100(1-α)% is below). Find the critical values for the following values of α: a. 0.05 b. 0.025

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The critical value zα (pronounced, zee-sub-alpha) is the number of standard deviations above the mean for which 100α% of the standard normal curve is above (and 100(1-α)% is below). Find the critical values for the following values of α:

a. 0.05

b. 0.025

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