Question

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(a) upper bail area of 0.025 wath 14 degrees of treefon

Answer 1

The student is looking for the t-value corresponding to an upper tail area of 0.025 with 14 degrees of freedom, typically found using a t-distribution table or calculator.

Step-by-step explanation:

From the provided question, it seems that the student is asking to find the t-value for a given upper tail area in a t-distribution with a certain degrees of freedom. This is a common problem in statistics, specifically in hypothesis testing and confidence interval estimation.

In this case, you are looking for the t-value that corresponds to an upper tail area of 0.025 with 14 degrees of freedom. To find this value, one would typically use a t-distribution table, software, or an online calculator that provides critical values of the t-distribution.

Although the exact t-value is not given in the supplied text, using a t-distribution table or calculator, we would find the t-value that leaves an area of 0.025 in the upper tail of the t-distribution with 14 degrees of freedom. This critical t-value is commonly used for a 95% confidence interval or a two-tailed hypothesis test at the 5% significance level.