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Questions and Answers
Given a right-tailed distribution with 18 degrees of freedom and a significance level of 0.01, what is the correct t critical value?
Given a right-tailed distribution with 18 degrees of freedom and a significance level of 0.01, what is the correct t critical value?
- -2.878
- 1.734
- 2.583 (correct)
- -2.878
For a left-tailed distribution with a significance level of 0.05 and 30 degrees of freedom, what would be the t critical value?
For a left-tailed distribution with a significance level of 0.05 and 30 degrees of freedom, what would be the t critical value?
- 1.414
- -1.697 (correct)
- 1.697
- -1.414
In a two-tailed distribution with 20 degrees of freedom, what t critical values would you use for a significance level of 0.025?
In a two-tailed distribution with 20 degrees of freedom, what t critical values would you use for a significance level of 0.025?
- -1.729, 1.729
- -2.086, 2.086 (correct)
- -2.160, 2.160
- -2.527, 2.527
If you have a right-tailed distribution with 25 degrees of freedom and a significance level of 0.10, what is the correct t critical value?
If you have a right-tailed distribution with 25 degrees of freedom and a significance level of 0.10, what is the correct t critical value?
When given a left-tailed distribution with 15 degrees of freedom and a significance level of 0.025, what would be the appropriate t critical value?
When given a left-tailed distribution with 15 degrees of freedom and a significance level of 0.025, what would be the appropriate t critical value?
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Study Notes
- Using the t distribution table to obtain t critical values involves selecting rows for the tail type, columns for significance levels, and rows for degrees of freedom.
- In a left-tailed distribution with a significance level of 0.10 and 14 degrees of freedom, the t critical value is -1.345.
- For a right-tailed distribution with a significance level of 0.05 and 24 degrees of freedom, the t critical value can be found by selecting the appropriate values.
- In a two-tailed distribution with a significance level of 0.01 and 34 degrees of freedom, the process of selecting the t critical value follows a similar pattern as in the other examples.
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