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vivado [14]
3 years ago
7

The difference of the sample means of two populations is 34.6, and the standard deviation of the difference of the sample means

is 11.9.
The 95% confidence interval lies between
???
Mathematics
2 answers:
Kitty [74]3 years ago
5 0

Answer:

-23.8 and +23.8

Step-by-step explanation:

Nat2105 [25]3 years ago
4 0

Answer:

The 95% confidence interval lies between -23.8 and +23.8

Step-by-step explanation:

I just did it on Edmentum.

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HELP!
lidiya [134]

Step-by-step explanation:

So it's really easy if you read it carefully, the only thing you need to do is 63,000 - 6,922 = _____ and that's it hope it helps

3 0
3 years ago
5. What is the median of the data displayed in the box-and-whisker plot?
Anit [1.1K]

Answer:

5. 20

6. 30

7. 22

Step-by-step explanation:

5. The median is indicated by the line (and dot) in the middle of the box.

6. The maximum value is indicated by the extreme right end of the whisker.

7, The upper quartile is indicated by the right end of the box.

5 0
3 years ago
Read 2 more answers
Landon left a garbage can on the lawn and the grass underneath it died. The diameter of
Leona [35]

Answer:

The area of the grass that died is 2,289.06 cm²

Step-by-step explanation:

In order to calculate the area of the grass that died, we need to calculate the area of the bottom of the trash can. Since it's a circular shape it's area is given by:

area = pi*r²

Where r = d/2, therefore:

r = 54/2 = 27 cm

Applying this data to the formula, we have:

area = pi*(27)² = 2,289.06 cm²

The area of the grass that died is 2,289.06 cm²

6 0
3 years ago
Work out the size of angle x
Nikitich [7]

Answer:

x=129

Step-by-step explanation:

180-51=129

5 0
3 years ago
A scale drawing of a school cafeteria has a width of 6 inches and a length of 9 inches. The scale of the drawing represents 0.5
Gekata [30.6K]

Answer:48\times 72\ ft^2

Step-by-step explanation:

Given

Width of school cafeteria W=6\ in.

Length of Cafeteria L=9\ in.

Scale of drawing represent 0.5\ in.\ as\ 4\ Ft

1\ in.\ as\ 8\ ft

So actual length and width of drawing

L_{actual}=6\times 8=48\ ft

W_{actual}=9\times 8=72\ ft

3 0
3 years ago
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