Use Appendix B.5 to locate the value of t under the following conditions.
The sample size is 12 and the level of confidence is 95%
The sample size is 20 and the level of confidence is 90%
The sample size is 8 and the level of confidence is 99%.
t- value for the * Sample Size is 12 and level of confidence 95% Degrees of freedom = Sample Size - 1 = 12 -1 = 11 t -value for Degrees of freedom 11 and 95% level of confidence is 2.201
* Sample Size is 20 and level of confidence is 90% Degrees of freedom = Sample Size - 1 = 20 -1 = 19 t - value for Degrees of freedom 19 and 90% level of confidence is 1.729
* Sample Size is 8 and Level of confidence is 99% Degrees of freedom = Sample size -1 = 8 -1 = 7 t -value for Degrees of freedom 7 and 99% level of confidence is 3.500