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sertanlavr [38]
3 years ago
7

Give me ans please......……………………​

Mathematics
1 answer:
jeka57 [31]3 years ago
7 0

hope it helps

it says I can't send if it has less than 20 characters why?

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The U.S. Bureau of Labor Statistics reports that of persons who usually work full-time, the average number of hours worked per w
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Answer:

The standard deviation of number of hours worked per week for these workers is 3.91.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by

Z = \frac{X - \mu}{\sigma}

After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X. Subtracting 1 by the pvalue, we This p-value is the probability that the value of the measure is greater than X.

In this problem we have that:

The average number of hours worked per week is 43.4, so \mu = 43.4.

Suppose 12% of these workers work more than 48 hours. Based on this percentage, what is the standard deviation of number of hours worked per week for these workers.

This means that the Z score of X = 48 has a pvalue of 0.88. This is Z between 1.17 and 1.18. So we use Z = 1.175.

Z = \frac{X - \mu}{\sigma}

1.175 = \frac{48 - 43.4}{\sigma}

1.175\sigma = 4.6

\sigma = \frac{4.6}{1.175}

\sigma = 3.91

The standard deviation of number of hours worked per week for these workers is 3.91.

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3 years ago
By treating savings as an ___ it guarantees that you will save the money instead of spending it
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Step-by-step explanation:

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Find the missing dimension of a parallelogram a=84.77in b=17.3 in what is the height
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Answer:

Step-by-step explanation:

a

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A gallon of Moo Milk cost $5.12. What is the price, in dollars, of an 8 oz glassof Moo Milk?
MA_775_DIABLO [31]
The cost for a gallon of Moo Milk is $5.12
To find the cost of 8 fl. oz. of Moo Milk, the unit price must be found.

Therefore:

One gallon of liquid equals 128 fluid ounces. 

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0.04 × 8 = 0.32

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I hope this helped - Maria S.
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3 years ago
What does 17/800 equivalent to?
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If you are looking for just any equivalent fraction then 34/1600 is the same as 17/800
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