Answer:
3
Step-by-step explanation:
Substitute
(5)(3)-(3)(4)
solve
15 - 12 = 3
Answer:
4/9
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that a part of a study of the treatment of anemia in cattle, researchers measured the concentration of selenium in the blood of 36 cows who had been given a dietary supplement of selenium (2 mg/day) for one year.
If x is the selenium concentration then
X has mean= 6.21 mg/dl
and std dev = 1.84
Sample size n = 36
std error of sample = 
Margin of error for 95%

Confidence interval = 
Answer:
0.201
Step-by-step explanation:
0.201 is the answer because 0.67
x 0.3
---------
0.201