Question

Explain how to obtain t* and t** in the formula for a 95% confidence region.

Answer 1

ANSWER::

To find the critical t value at 95% confidence either you can use the calculator or the table.

t* is a critical value determined from the distribution in such a way that there is area between t* and -t*

( n -1) is the degree of freedom and nis the sample size

for 95% confidence (remember to calculate the confidence interval use two tailed value)

hence for a particular and (n-1) degree of freedom you can find the value of t* in the table

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