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SIZIF [17.4K]
2 years ago
9

Suppose you are conducting a study about how the average US worker spends time over the course of a workday. You are interested

in how much time workers spend per day on personal calls, emails, and social networking websites, as well as how much time they spend socializing with coworkers versus actually working.
The most recent census provides data for the entire population Of U.S. workers on variables such as travel time to work, time spent at work, and break time at work. The census, however, does not include data on the variables you are interested in, so you obtain a random sample of 82 full-time workers in the United States and ask about personal calls, e-mails, and so forth. You are curious about how your sample compares with the census, so you also ask the workers the same questions about work that are asked in the census.

Suppose the mean break time per day from the most recent census is 29.6 minutes, with a standard deviation of 16.0 minutes. Your sample of 82 U.S. workers provides a mean break time per day of 31.9 minutes with a sample standard deviation of 22.4 minutes.

Organize this information by completing the following table.

μ = _________ M= __________
σ= _________ s= ___________
σM = _______ sM = _________
Mathematics
1 answer:
matrenka [14]2 years ago
6 0

Answer:

lol

Step-by-step explanation:

Now don't get us wrong – not all of these answers raise this excellent question

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What is 0.782 rounded to the tenths
pochemuha
It would be 0.780 because the 2 is not higher than a 5.



remember this saying... 5 or more add 1 more 4 or less just ignore
6 0
3 years ago
What is the length of the side labeled x?
Scorpion4ik [409]

Answer:

AB = 42.15 units

Step-by-step explanation:

In triangle ABD,

By applying Cosine rule in this triangle,

cos(30)°= \frac{\text{Adjacent side}}{\text{Hypotenuse}}

\frac{\sqrt{3} }{2} = \frac{AD}{AB}

\frac{\sqrt{3}}{2}=\frac{AD}{47}

AD = \frac{47\sqrt{3}}{2}

By applying tangent rule in ΔACD,

tan(44)° = \frac{\text{Opposite side}}{\text{Adjacent side}}

tan(44)° = \frac{AD}{x}

0.9657 =  \frac{\frac{47\sqrt{3}}{2}}{x}

0.9657 = \frac{47\sqrt{3}}{2x}

x = \frac{47\sqrt{3}}{2(0.9657)}

x = 42.15

  ≈ 42.2 units

4 0
2 years ago
Help please????????????
fredd [130]

Answer:

hiiii i total can help im doing this in school

Step-by-step explanation:

D

7 0
2 years ago
URGENTTT! Can someone please help me with this equation?
rosijanka [135]

Answer:

98.83

Step-by-step explanation:

Since 37° is 37/360th of the full circle, the area of the size of pie will be 37/360th of the full area. The radius is d / 2 = 17.5 so the area is:

37/360 * πr²

= 37/360 * 3.14 * 17.5²

= 98.83

4 0
3 years ago
Read 2 more answers
After the movie premiere 99 out of 130 people surveyed said they liked the movie. What is the experimental probability that the
Margaret [11]
Out of the 130 people surveyed, 99 people said they liked the movie. So to figure out the probability that the next person likes the movie, you divide 99 from 130. 
The answer is approximately 76%.
6 0
3 years ago
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