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Komok [63]
3 years ago
7

What is the margin of error for a sample statistic for a population with a standard deviation of 7.75?

Mathematics
1 answer:
3241004551 [841]3 years ago
6 0

Answer:

Margin of Error  = 1.96 \times 7.75 = 15.19

Step-by-step explanation:

i) Margin of Error of a population with a standard deviation of 7.75?

ii) Let us assume a two tailed test with a 95% confidence interval

iii) Z_{\frac{\alpha }{2} }  = Z_{\frac{\ 0.05 }{2} } = Z_{0.025} = 1.96

iv) therefore Margin of Error  = 1.96 \times 7.75 = 15.19

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agasfer [191]

The volume of the diamond is 137.1 cm³. The correct option is the last option 137.1 cm³

<h3>Density, Mass and Volume </h3>

From the question, we are to calculate the volume of the diamond

Using the formula,

Density = Mass/ Volume

Then, we can write that

Volume = Mass/ Density

From the given information,

Mass of the large diamond = 481.3 grams (g)

Density of the diamond = 3.51 grams/ centimeters cubed (g/cm³)


Putting the parameters into the formula, we get

Volume = (481.8 g)/ (3.51 g/cm³)

Volume = 137.1225 cm³

Volume ≈ 137.1 cm³

Hence, the volume of the diamond is 137.1 cm³. The correct option is the last option 137.1 cm³

Learn more on Density, mass and volume here: brainly.com/question/1762479

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2 years ago
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3 years ago
If h(x) = −2x − 10, find h(−4)
lbvjy [14]

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Step-by-step explanation:

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h(-4) = −2(-4)  − 10

h(-4) = 8 - 10

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So first you do  length x width x height in this case 1.4 x 1.4 x 1.4
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A number, y, is 2 less than a half of a number x.
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Y=1/2x-2
Since y is 2 less than half of x, you subtract to from 1/2x to equal y.
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