Answer:
The sample size must be atleast 502 to have a margin of error of 0.03
Step-by-step explanation:
We are given the following in the question:
Proportion = 0.32
Level of significance = 0.15
Margin of error = 0.03
Formula for margin of error =
We have to find the sample size such that the margin of error is atmost 0.03.
Putting values, we get,
Thus, the sample size must be atleast 502 to have a margin of error of 0.03 in approximation of proportion of people who would black out at 6 or more Gs.
Answer:
<h2>
<em><u>$23.40 </u></em></h2>
Step-by-step explanation:
<em><u>Given,</u></em>
Cost price of 8 cakes = $62.40
<em><u>So,</u></em>
Cost price of 1 cake = $ 
<em><u>Therefore,</u></em>
Cost price of 3 cakes
= $( × 3)
- <em>[On dividing 62.40 by 8]</em>
= $(7.80 × 3)
- <em>[On multiplying]</em>
= $23.40
<em><u>Hence,</u></em>
<em><u>The required cost of 3 cakes is $23.40 (Ans)</u></em>
The inequality is true only when x=-7/4
Step-by-step explanation:
net force acting on the box is,
10 + 20 - 5
→ 30 - 5 = 25
therefore, 25 N towards left is correct
Hope this answer helps you dear!
<span>(7x - 20) + (4x) =180
(7x + 4x) - 20 = 180
11x = 200
x = 200/11
Hope it helps
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