If a = 0.05 2 tail, the critical value of z is ±1.96.

Name: If a = 0.05 2 tail, the critical value of z is ±1.96.
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Quizplus · Accepted Answer

This statement is true. A significance level (or alpha level) of 0.05 for a two-tailed test corresponds to a critical value (or cutoff point) of ±1.96 standard deviations from the mean, assuming a normal distribution. This means that if the calculated test statistic falls outside this range, then it is considered statistically significant at the 0.05 level.

If a = 005 2 Tail, the Critical Value of Z Is ±1