Answer:
Step-by-step explanation:
Given : Sample size : n= 25
Degree of freedom : n-1 = 24
Significance for 95% confidence =
Sample variance :
We assume that the population of all cylindrical engine part outside diameters that would be produced by the new machine is normally distributed
Using chi-square distribution table , Critical values are:
Confidence interval for variance is given by:-
∴ 95% confidence interval for variance :
Answer Correct
Step-by-step explanation:
Answer:
answers are 35, 3, and 15
Step-by-step explanation:
the first blank is 35
the Second blank is 3
the thired blank is 15