True mean = mean+/- Z*(SD/sqrt (n))
Where
Z = 1.96 at 95% confidence interval
Mean = 10.3 pounds
SD = standard deviation = 2.4 pounds
n= sample size = 37 packages
Substituting;
True mean range = 10.3+/- 1.96 * 2.4/Sqrt (37) =10.3+/- 0.77 = 9.53<mean<11.07
I'm not sure what the rest of the question is, but here's an equation! Maybe this will help! :)
y= 55 + 5x
Answer:
x = 
Step-by-step explanation:
Given
ax - c = bx + d ( collect the terms in x together )
Subtract bx from both sides
ax - bx - c = d ( add c to both sides )
ax - bx = c + d ← factor out x from each term on the left side
x(a - b) = c + d ← divide both sides by (a - b )
x = 
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