2 Use Table C or software to find the following Round your a

2. Use Table C or software to find the following. (Round your answers to three decimal places.) http://www.webassign.net/mbasicstat6/appendix-tables.pdf

(a) the critical value for a one-sided test with level = 0.025 based on the t(8) distribution
t* =

(b) the critical value for a 96% confidence interval based on the t(25) distribution
t* =

Solution

a)
Critical Value
The Value of |t | with n-1 = 8 d.f, at = 0.025, left tail is -2.306
The Value of |t | with n-1 = 8 d.f, at = 0.025, right tail is 2.306

b)
Critical Value
The Value of |t | with n-1 = 25 d.f, at = 0.04, left tail is -1.825
The Value of |t | with n-1 = 25 d.f, at = 0.04,right tail is 1.825
The Value of |t | with n-1 = 25 d.f, at = 0.04,two tail is 2.167