T-Distribution

What is the degrees of freedom for n=21.

• 14

• 16

• 18

• 20

Express 8% in decimal.

• 0.8

• 0.08

• 0.008

• 0.0008

Find the standard deviation if the variance of the population is 4.

• 1

• 2

• 3

• 4

Find the variance of the given population if the standard deviation 3.

• 3

• 6

• 9

• 12

 If x ̅=35, μ=30 ,s=4, n=16. Solve for the value of t.

• 2

• 3

• 4

• 5