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charle [14.2K]
3 years ago
9

A grass seed company conducts a study to determine the relationship between the density of seeds planted (in pounds per 500 sq f

t) and the quality of the resulting lawn. Eight similar plots of land are selected and each is planted with a particular density of seed. One month later the quality of each lawn is rated on a scale of 0 to 100. The sample data are given below where x denotes seed density, and y denotes lawn quality.x 1 1 2 3 3 3 4 5y 30 40 40 40 50 65 50 50The sample linear correlation coefficient is r=0.600. At the 1% significance level, do the data provide sufficient evidence to conclude that seed density and lawn quality are positively linearly correlated?
Mathematics
1 answer:
shutvik [7]3 years ago
4 0

Answer:

I think it  -1.50 to 10.58

Step-by-step explanation:

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Sin<img src="https://tex.z-dn.net/?f=sin%5Cfrac%7B%5Cpi%20%7D%7B4%7D" id="TexFormula1" title="sin\frac{\pi }{4}" alt="sin\frac{\
Harlamova29_29 [7]

\sin\left(\frac{\pi}{4}\right) = \frac{\sqrt{2}}{2} = \frac{1}{\sqrt{2}}

This is something you memorize, have on a reference sheet/table, or use the unit circle.

Note: pi/4 radians = 45 degrees

6 0
3 years ago
Read 2 more answers
Start up capital pays for which of the following?
pogonyaev

Answer:

Startup capital is used to pay for any or all of the required expenses of creating a new business, including initial hires, office space, permits, licenses, inventory, research and market testing, product manufacturing, marketing, or any other expense.

Hope it Helps, Pls Mark as Brainliest!!!

7 0
4 years ago
Read 2 more answers
Find the midpoint of a segment with the given endpoints.
34kurt

Answer:

  (9.5, 5.5)

Step-by-step explanation:

The midpoint coordinates are the average of the end point coordinates.

  midpoint = (W+X)/2 = ((12, 2) + (7, 9))/2 = (12+7, 2+9)/2

  midpoint = (9.5, 5.5)

4 0
3 years ago
On a number line what is the distance between −61.5 and -23.4
strojnjashka [21]
In order to find the distance between -61.5 and -23.4 on the number line, you just have to subtract either the greater value to lesser value or lesser value to the greater value.  It doesn't matter when you get a negative difference because the distance should be the absolute value of the difference of two points on a number line.
Here's how you should do it.
   (-61.5) - (-23.4) = -61.5 + 23.4 =  l-38.1l = 38.1
or
   (-23.4) - (-61.5) = -23.4 + 61.5 = l38.1l = 38.1

As you can see above, I tried to subtract the two numbers in different order, and the result is still the same. Just make sure to get the absolute value of the answer because the distance should always be in positive form.

Therefore, the distance between -61.5 and -23.4 is 38.1
  

7 0
3 years ago
X Y
Alexus [3.1K]

Answer:

⅓

Step-by-step explanation:

Whether you divide by ⅓ [X ÷ ⅓] or multiply by ⅓ [Y × ⅓], the ratio is similar. It never varies.

8 0
3 years ago
Read 2 more answers
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