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Kay [80]
3 years ago
10

The quantity of soda consumed per week at a soda fountain is 34 liters, with a standard deviation of 5.8 liters. If any 80 weeks

were sampled randomly, what would be the margin of error of the sample mean?
Mathematics
2 answers:
Bogdan [553]3 years ago
5 0

Answer:

The margin of error of the sample mean is 0.648.

Step-by-step explanation:

The standard error(margin of error) of a sample mean is given by the following formula:

SE = \frac{s}{\sqrt{n}}

In which s is the standard deviation of the sample and n is the size of the sample.

In this problem, we have that:

s = 5.8, n = 80

So

SE = \frac{5.8}{\sqrt{80}} = 0.648

The margin of error of the sample mean is 0.648.

Mama L [17]3 years ago
3 0
5.8/ sqrt 80=0.648 I think you are asking for the standard margin 
Hope this works
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just olya [345]

Answer:

a) Yes

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Here is a photo of the original function in black, it's inverse in red, and the line of reflection y = x in blue:

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f2) x-intercept of original function: -6

g) y-intercept of the inverse function: -6

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5 0
3 years ago
Factor by completing the square 5x^2-21=10x
velikii [3]
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Divide both sides by 5:
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Add 21/5 to both sides:
x^2 - 2 x = 21/5

Add 1 to both sides:
x^2 - 2 x + 1 = 26/5

Write the left hand side as a square:
(x - 1)^2 = 26/5

Take the square root of both sides:
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Add 1 to both sides:
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Add 1 to both sides:
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4 0
3 years ago
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Blababa [14]
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a^b < a^1 \\ b
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and second way:
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3 0
3 years ago
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marshall27 [118]

Answer:

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Step-by-step explanation:

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allochka39001 [22]

Answer:

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3 0
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