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:
x = 1 is not a solution to the equation
Step-by-step explanation:
2x + 4 = -3x - 2 x = 1
2(1) + 4 = -3(1) - 2
2 + 4 = -3 - 2
6 = -5 FALSE
The answer is a. 11 and -1
Answer: 60 degrees
Step-by-step explanation:
the line is 180 degrees so minus 50 equals 130 minus 10 120 divide my 2 60
Answer:
The Answer is C
Step-by-step explanation:
This applies to your exam.