High School

Based on the 68-95-99.7 rule, what is the critical value [tex] z^* [/tex] for a 95% confidence interval on the Normal distribution?

Answer :

Final answer:

The critical value z* for a 95% confidence interval is 2.

Explanation:

The critical value z * for a 95% confidence interval on the Normal distribution can be found using the 68-95-99.7 rule. According to this rule, 95% of the values lie between z-scores of -2 and 2. Therefore, the critical value z * is 2.

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