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OlgaM077 [116]
3 years ago
15

Geometry, Chapter 9 test

Mathematics
1 answer:
atroni [7]3 years ago
6 0
We need a picture of the problem
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A study will be conducted to investigate whether there is a difference in the mean weights between two populations of raccoons.
enyata [817]

Answer:

<h2>In this case,the answer would be option d) given in the answer choices or options or  A two-sample t-test for a difference between population means.</h2>

Step-by-step explanation:

  • In Statistics,a two sample test is generally used to examine or compare two different population means with the main objective to verify whether the population means are equal or otherwise.
  • The two sample t-test basically involves the hypothesis testing to determine or verify the equality between two concerned population means.
  • In this case,the two different populations of raccoons are given and the equality of the mean sample weights of the two distinct populations can be determined or evaluated by employing the hypothesis testing method under a two sample t test for measuring difference in two population means.
5 0
3 years ago
Y = 119.67 (0.61) ÷ 5
Travka [436]
Y=  119.67 (0.61) <span>÷ 5
Y= 72.9987 </span>÷ 5 or 73 ÷ 5<span>
Y= 14.6</span>
4 0
3 years ago
What are the coordinates of the point on the directed line segment from
Zielflug [23.3K]

Answer:

(- 1, - 3 )

Step-by-step explanation:

Given endpoints (x₁, y₁ ) and (x₂, y₂ ) partitioned in the ratio m : n

Then using the Section formula the coordinates of the point are

( \frac{nx_{1}+mx_{2}  }{m+n}, \frac{ny_{1}+my_{2}  }{m+n} )

Here (x₁, y₁ ) = (- 4, - 9), (x₂, y₂ ) = (1, 1) and m : n = 3 : 2 , then

( \frac{2(-4)+3(1)}{3+2} , \frac{2(-9)+3(1)}{3+2} )

= ( \frac{x}{y} \frac{-8+3}{5}, \frac{-18+3}{5} )

=  ( \frac{-5}{5}, \frac{-15}{5} )

= ( - 1, - 3 )

6 0
3 years ago
Read 2 more answers
Anaya swims 10 miles at eachof her practice sessions. how long is a practice session if she swims at an average speed. 2 miles p
Trava [24]

Answer:

If 2 mph) 5 hours

If 2.5 mph) 4 hours

If m mph) 10/m hours

If m+2 mph) 10/(m+2) hours

If m/3 mph) 30/m hours

Step-by-step explanation:

To find the time divide the distance (10) by the speed.

10/2=5

10/2.5=4

10/m

10/(m+2)

10/(m/3)=10(3/m)=30/m

4 0
3 years ago
Read 2 more answers
A. X = -2<br><br> B. X = 2<br><br> C. X = 3<br><br> D. X = 0
Citrus2011 [14]

Answer:

(-2,3)

so the a answer is -2 on the x axis

3 0
3 years ago
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