Determine the t-value for each case: (a) Find the t-value such that the area in the right tail is 0.05 with 11 degrees of freedom. (b) The t-value such that the area left of the t-value is 0.02 with 23 degrees of freedom. (c) Find the critical t-value that corresponds to 99% confidence. Assume 5 degrees of freedom (a) Round to 3 decimal places (b) Round to 3 decimal places (c) Round to 3 deeintal plices