Answer: The margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.
Step-by-step explanation:
Since we have given that
Sample size = 400
Mean = $357.75
Standard deviation = $37.89
At 95% confidence level, z = 1.96
We first find the margin of error.
Margin of error is given by
95% confidence interval would be
Hence, the margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.
Answer:
The Expected Family Contribution (EFC) is a measure of your family's financial strength and is calculated according to a formula established by law. Your family's taxed and untaxed income, assets, and benefits (such as unemployment or Social Security) are all considered in the formula.
Step-by-step explanation:
i hope this helped!!
Answer:
0.375
Step-by-step explanation:
Answer:
<em>3731.2 pounds</em>
Step-by-step explanation:
<em>Aquarium will hold 4.4 * 2.5 * 5.3 = 58.3 cubic feet of sea water.</em>
<em>For 3 cubic feet of sea water, weight is 192 pounds</em>
<em>For 58.3 cubic feet of sea water,</em>
<em>( 192 * 58.3) / 3 = 11193.6 / 3 = 3731.2 pounds</em>
Answer:
-11.7 is the correct answer. Hope this helps
