How do u do this problem 1/2x-1/4y=10 1/8x-1/8y=19?
1 answer:
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Answer:
<em>The interior length of the bassinet to ensure that 99 percent of newborn babies will fit = 1.7 cm</em>
Step-by-step explanation:
<u><em>Explanation:</em></u>-
<em><u>step(i):</u></em>-
Given mean of population = 50 cm
<em>standard deviation of Population = 5 cm</em>
<em>Given Margin of error = 10 cm</em>
<em>The Margin of error is determined by </em>
<em></em><em></em>
<u><em>Step(ii)</em></u><em>:-</em>
<em>Given level of significance ∝ = 99 % or 1 %</em>
Z₀.₀₁ = 2.576
√n = 1.3
squaring on both sides , we get
<em>n = 1.69≅ 1.7 cm</em>
<u><em> Final answer:</em></u>-
<em>The interior length of the bassinet to ensure that 99 percent of newborn babies will fit = 1.7 cm</em>