Question: =+a) a 95% confidence interval based on 24 df. b) a 95% confidence interval based on 99 df. 12. Find the critical value t* for:

=+a) a 95% confidence interval based on 24 df.

b) a 95% confidence interval based on 99 df.

12. Find the critical value t* for:

a) a 90% confidence interval based on 19 df.

b) a 90% confidence interval based on 4 df.

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