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sdas [7]
3 years ago
7

A company offered one half of its employees a bonus if the production of light bulbs increased by 30%. The other half of the emp

loyees was not offered a bonus. As the end of the month, production in the group that did not get the bonus offer increased by a mean of 20 and production in the bonus group increased by a mean of 30.
What is the correct order of steps to determine if the results are significant?

A. Run the experiment many times.
B. Randomly separate the employees’ individual results into two groups.
C. Calculate the probability of a difference of 10.
D. Calculate the difference of the means.
E. Calculate the mean of each group.

A, B, C, D, E
A, B, C, E, D
B, E, D, C, A
B, E, D, A, C
Mathematics
2 answers:
Artist 52 [7]3 years ago
5 0

Answer with explanation:

The Meaning of the statement "Result are Significant" is that ,if you repeat the experiment under identical condition they produce the same outcome most of time.

Now, to determine if the results are significant,the correct order of steps should be:

A: Run the experiment many times.

B: Randomly separate the employees’ individual results into two groups.

C:  Calculate the probability of a difference of 10.

E: Calculate the mean of each group.

D: Calculate the difference of the means.

Option B:→ A,B,C,E,D

Anuta_ua [19.1K]3 years ago
4 0
This should be the answer B,E,D,A,C
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Jeff feeds the family dog on Wednesdays and his sister Melody feeds the dog on Fridays. On Wednesday, Jeff gave the dog 5/8 of a
Tasya [4]
8 x 5/8 = The ounces fed by Jeff
You need to convert 1/2 with the denominator of 8 with would be 4/8
8 x 4/8 = The ounces fed by Melody
HOPE THIS HELPS!!
4 0
3 years ago
Can someone please help.
zvonat [6]

Answer:

  • 8 jars

Step-by-step explanation:

Let the number of jars is x.

<u>80 liters distributed, each jar has:</u>

  • 80/x

<u>Redistribution with 4 less jars, each jar now has:</u>

  • 80/(x - 4)

<u>Each jar has now twice the amount:</u>

  • 80/x*2 = 80/(x - 4)
  • 2/x = 1/(x - 4)
  • 2(x - 4) = x
  • 2x - 8 = x
  • x = 8

She prepared 8 jars at the start

4 0
3 years ago
Given the system of linear equations.
Karo-lina-s [1.5K]

Part A:


x + y = 9

4x + y = 6


To solve this system using substitution, begin by isolating either x or y in the first equation. I'll isolate x.


x + y = 9

x = 9 - y


Substitute this expression (9 - y) into the second equation for x and solve.


4x + y = 6

4(9 - y) + y = 6

36 - 4y + y = 6

36 - 3y = 6

-3y = -30

y = 10


To find x, substitute 10 for y into either of the original equations.


x + y = 9

x + 10 = 9

x = -1


Finally, check all work by substituting the x- and y-values into each original equation.


x + y = 9   -->   -1 + 10 = 9   -->   9 = 9   -->   True

4x + y = 6   -->   4(-1) + 10 = 6   -->   -4 + 10 = 6   -->   6 = 6   -->   True


The answer for Part A is x = -1 and y = 10; (-1, 10).


Part B:


For graphing, it's easier to get the equations into slope-intercept form. Slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept. To get our equations into slope-intercept form, we must simply isolate y.


x + y = 9

y = 9 - x

y = -x + 9


4x + y = 6

y = 6 - 4x

y = -4x + 6


Now that we have our slope-intercept equations, we can easily graph them, since their slopes and y-intercepts are readily visible.



Let's start with the y-intercepts. They are (0, 9) and (0, 6). You can plot those points on the graph.


Now, the slopes. The slope of the first line is -1, this means it declines. To plot this, start where you plotted the y-intercept, count one unit down, and then one unit to the right, and plot that point. Continue doing that and connect the dots, and you will have plotted the first line. The slope of the second line is -4, so it also declines. For this line, count four units down, and then one to the right and plot that point. Likewise, continue this and connect the coordinates, and you will have your line. (See attachment for graph.)


The lines do indeed intersect at (-1, 10); our answer is verified by graphing.

5 0
3 years ago
Work out the answer to this problem to reduce to the simplest form 5/8-1/2=
inysia [295]
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3 0
3 years ago
Read 2 more answers
A model house has a scale of 1 cm to 3 meters.If the model house 5cm,then how is tall is the house.
maksim [4K]

Answer:

15m

Step-by-step explanation:

1cm=3m

5cm is equal to 15m

6 0
3 years ago
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