Answer to Question #264173 in Statistics and Probability for MS mammak

Question

Use the t distribution to find the reliability factor for a confidence interval based on the following

confidence coefficients=0.99 and sample sizes: 24

Answer 1

The confidence coefficientis 0.99

(i.e) 1-α=0.99 ---> α=0.01

$\frac{α}{2}=\frac{0.01}{2}=0.005$

Sample size, n=24

Degrees of freedom=n-1=23

The t – table value with 23d.f is

$t_ {α/2}=2.807$ (Fromt tables)