(Solved): Determine the t critical value for a lower or an upper confidence bound in each of the following si ...

Determine the $t$ critical value for a lower or an upper confidence bound in each of the following situations. (Round your answers to three decimal places.) (a) Confidence level $=95\%$, df $=10$ (b) Confidence level $=95\%$, df $=15$ (c) Confidence level $=99\%$, df $=15$ (d) Confidence level $=99\%,n=5$ (e) Confidence level $=97.5\%$, df $=21$ (f) Confidence level $=99\%,n=34$