What is the critical for a large sample confidence interval for the mean with 98% confidence...

What is the critical for a large sample confidence interval for the mean with 98% confidence level?

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Expert Solution

For large sample we should use standard normal distribution to find the critical value for 98% confidence level.

=> significance level = 1 - 0.98 = 0.02

Using standard normal z-table we get z-score corresponding probability of 0.99 is, Zcrit = 2.33

Therefore, required critical values are -2.33, 2.33

orchestra answered 1 year ago

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