Answer:
Following are the solution to the given question:
Step-by-step explanation:
Confidence Interval for both the percentage of all x-ray machines
p = the machinery's share is not working:

Lower
Confidence interval = p - error margin
Upper
Confidence Interval = p + error margin
So,
Confidence Interval 
Your answer should be 32 because 384 <span>÷ 12 = 32</span>
Answer:
4/8
Step-by-step explanation:
If you simplify it you get 1/2
B- 1/2 the books are science books. You have to add the two fractions and subtract that from one.
Answer:
3.408 × 10-6 i think
Step-by-step explanation: