Question

27. Find the critical values chi squared Subscript Upper L and chi squared Subscript Upper R for the given confidence level c and sample size n. cequals0.98​, nequals23 chi squared Subscript Upper Lequals nothing ​(Round to three decimal places as​ needed.)

Answer 1

27)

Solution :

Given that,

n = 23

Degrees of freedom = df = n - 1 = 22

At 98% confidence level the ² value is ,

= 1 - 98% = 1 - 0.98 = 0.02

/ 2 = 0.02 / 2 = 0.01

1 - / 2 = 1 - 0.01 = 0.99

²_L = ²_/2,df = 40.289

²_R = ²_{1 - /2,df} = 9.542