What is the appropriate t critical value for each of the following confidence levels and sample sizes when testing the two-sided alternative hypothesis?
80% confidence, n = 17
______________
90% confidence, n = 7
______________
99% confidence, n = 4
______________
95% confidence, n = 14
______________

T Critical Value

The value from the t-distribution that is associated with a specified level of significance for a two-tailed test.

Confidence Levels

Confidence levels are the degree of certainty or probability—expressed as a percentage—that a confidence interval contains the true parameter value.

Alternative Hypothesis

The hypothesis in a statistical test that proposes a specific difference or effect, in contrast to the null hypothesis which suggests no effect.