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Problem

 

7.4 Finding Critical T Values

Concept
Now You Try It!
Problem 2

Finding the appropriate critical value ta/2. For the problems below, find the appropriate critical value given the sample size and confidence level.

·        For n = 29 and a confidence level of 98% ·        For n = 19 and a confidence interval of 80% ·        For n = 15 and a confidence interval of 99% ·        For n = 27 and a confidence interval of 90%

 

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