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Arisa [49]
3 years ago
11

Ten samples of a process measuring the number of returns per 100 receipts were taken for a local retail store. The number of ret

urns were 10, 9, 11, 7, 3, 12, 8, 4, 6, and 11. Find the standard deviation of the sampling distribution for the p-bar chart.
Mathematics
1 answer:
Ulleksa [173]3 years ago
3 0

Answer:

Standard Deviation = 0.0273

Step-by-step explanation:

P = Total number of returns / (Sample * Timetaken)

   = 81 / (100 * 10)

    = 0.081

Standard Deviation = √((P * (1 - P)) / Samples

                                          = √((0.081 * (1 - 0.081)) / 100

                                           = 0.0273

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dimulka [17.4K]

Answer:

6 mile/hour

Explanation :



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9/2x + 1.5/x = 2


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= > 12 = 4x


= > x = 3


Average speed of walking = 3 mile/hour


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3 years ago
How do you solve <br> 8|x+2|-6=5|x+2|+3
sergejj [24]

Answer:

x = 1 or x = -5

Step-by-step explanation:

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Subtract 2 from both sides:

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Subtract 2 from both sides:

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Multiplication by 10ⁿ → move decimal n places to the right.

Multiplication by 10⁻ⁿ → move decimal n places to the left.

For n ∈ N

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3 years ago
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