In the first equation, you substitute the b for the value already given.
2 * 3 + 9
Do the operation.
6 + 9
6+ 9 = 15
You make the same with the second expression.
26 <span>÷ 2
</span>26 <span>÷ 2 = 13</span>
You divide 108 by 12 and your answer is 9 pounds per acre
Answer: a. 170 b. 752
Step-by-step explanation:
The formula to find the sample size is given by :-
, where p is the prior estimate of population proportion.
= Two-tailed z-value for (significance level).
E= Margin of error .
Given : Margin of error = 0.03
Confidence level = 90%=0.90
By z-value table :
a) The president's political advisors estimated the proportion supporting the current policy to be : p= 0.06.
Required sample size :
∴ Required sample size = 170
b) If no prior estimate of population proportion is given , then we assume
p= 0.5
Required sample size :
∴ Required sample size = 752
Answer:
I'm gonna take a wild guess and say 180,066 ;)