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SIZIF [17.4K]
3 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]3 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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Extra points! Please just show me how to set this up so I can solve, I don't need the answer. Thank you!
GREYUIT [131]

Answer:


Step-by-step explanation:

Think of of this as a function in which the number of pounds is a function of the number of hours. Each piece of given information is a point. Each point has the format (x, y) = (hours, pounds), where hours is x and is the independent variable, and pounds is y and is the dependent variable.

You have two points (4.5, 1445) and (7, 2320). First find the slope of the line that passes through those two points. Use the slope formula,

m = (y2 - y1)/(x2 - x1).

Then using the slope and the point-slope equation of a line, find the equation of the line. The point-slope equation of a line is

y - y1 = m(x - x1),

where m = slope, and the point is (x1, y1).

Try it. If you have questions or need extra help, just comment.

4 0
3 years ago
In a circle, a 90° sector has area 16π ft2. What is the radius of the circle?
Veronika [31]
Sector area  = 0.5 * r^2 * angle (in radians)

so:

16 pi = 0.5 * r^2 * (90*pi/180)

r^2 = 16 pi /(0.25 pi) = 64

r = 8


therefore it would be d
7 0
3 years ago
Hillary unraveled 3.0 centimeters of ribbon and then continued to unravel 1.5 more centimeters.
galina1969 [7]
Thanks for the free points hope you find your awnser!
3 0
3 years ago
Is it necessary to rename 4 1/4 if you subtract 3/4 from it
Nesterboy [21]
No because they both have the same denominator!
5 0
3 years ago
Please Help, Thank You!
irina [24]

Answer:

e=9

sorry thats all i know:(

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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