The answer would be 31.4.
Answer:
Step-by-step explanation:
The x-intercept is where y is 0.
The y-intercept is where x is 0.
The x-intercept would be (-4, 0) and the y-intercept (0, 2)
Using the slope formula, (y2-y1/x2-x1), we can find the slope which is 1/2.
Answer: 
Step-by-step explanation:
Given : Population mean : 
Standard deviation : 
Sample size : n=35
Significance level : 
Critical value = 
The confidence interval for sample mean is given by :-
i.e. 
Hence, the required interval=
Answer:
The answers are a. 0.27 b. 0.2 c. 0.2 d. 0.3 e. 0.3 f. 1
Step-by-step explanation:
Total output = 100% = 1
Total defective = 6% + 5% + 8% + 8% = 27% = 27
a. Prob of defective item = total defective/total output
= 27/100
= 0.27
b. Prob of defective from machine 1 = 6/27 =0.2222
~ 0.2
c. Prob of item defective from machine2 = 5/27 = 0.1852
~0.2
d. Prob of de defective from machine 3 = 8/27 = 0.2963
~0.3
e. Prob of defective from machine 4
= 8/27 = 0.2963
~ 0.3
f. Sum of prob from b-e
0.2 + 0.2 + 0.3 + 0.3
= 1
