Answer:
42
Step-by-step explanation:
The interval of filled bags is at confidence interval of 95%.
At 95% confidence interval, Z=1.96 (from Z tables).
But,
Z= (x-mean)/sd => 1.96 = (x-450)/20 => x (upper limit)= 20*1.96+450489 bags
Lower limit or minimum number bags to avoid replace= 450-1.96*20 =411 bags
Multiply both sides of the inequality by 2
x-10>-14
move constant to the right side and change its sign
x>-14+10
calculate the sum
x>-4
answer is x>-4
Answer: C: 12/5
Step-by-step explanation:
y intercept is where x is 0, so set x equal to 0
0+5y=12
y=12/5
Rounded to the nearest ten-thousand: 20,000
Rounded to the nearest thousand: 24,000
