11. Given the df, confidence level, and tscore, what is your decision about the null hypothesis? (10 points)

a) df = 21, 99% confidence level, 2-tailed test

What is the critical t value =

If t = 2.32, can you reject the null hypothesis (yes/no)?

b) df = 36, 95% confidence level, 1-tailed test

What is the critical t value =

If t = 2.00, can you reject the null hypothesis (yes/no)?

c) df = 10, 99% confidence level, 2-tailed test

What is the critical t value =

If t = 3.21, can you reject the null hypothesis (yes/no)?

d) df = 27, 99% confidence level, 1-tailed test

What is the critical t value =

If t = 3.15, can you reject the null hypothesis (yes/no)?

e) df = 25, 90% confidence level, 2-tailed test

What is the critical t value =

If t= 1.34, can you reject the null hypothesis (yes/no)?