Solve the following 1.) a.)What proportion of the t distribution with 11 degrees of freedom falls within t = -1.80 to t = 2.20? (Round to the nearest thousandth.) b.) What proportion of the t...

Solve the following

1.)

a.)What proportion of the t distribution with 11 degrees of freedom falls within t = -1.80 to t = 2.20? (Round to the nearest thousandth.)
b.) What proportion of the t distribution with a sample size of 16, n=16, falls within t = 1.34 to t = 2.95? (Round to the nearest thousandth.)

c.)What proportion of the t distribution with 23 degrees of freedom falls outside of t= -1.32 and t= 2.07 ? (Round to the nearest thousandth.)

d.)What proportion of the t distribution with a sample size of 19, n=19, falls outside of t= 1.73 and t= 2.55 ? (Round to the nearest thousandth.)