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KiRa [710]
3 years ago
13

X y

Mathematics
2 answers:
SCORPION-xisa [38]3 years ago
6 0
A

both the x and y values are increasing at a steady rate (x by 3 and y by 5)

because it’s y/x, you would put the increase in the y value over the increase in the x value

hope that helps :)
Klio2033 [76]3 years ago
6 0

Answer:

<h2>A.</h2>

Step-by-step explanation:

Yes, they have a proportional relationship.

The table shows sequences, where <em>x-values </em>increase +3, and <em>y-values </em>increase +5, that is, while <em>x </em>increases 3 unites, <em>y </em>increases 5 units, this ratio between variables can be described as the slope:

m=\frac{13-(-2)}{12-3} =\frac{15}{9}=\frac{5}{3}

This fraction or ratio is referring to what we said in words, while <em>y </em>increases 5 units, <em>x </em>increases 3 units. We observe that is a positive ration, this means that magnitudes are both increasing.

Therefore, the right answer is the first one A.

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We accept H₀

Step-by-step explanation:

Population mean  μ₀ = 47500

Population standard deviation unknown

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Sample standard deviation 2,351

The claim implies a two tail test with t-studend distributon

Null  Hypothesis                 H₀               μ  =  μ₀

Alternative Hypothesis      Hₐ               μ  ≠  μ₀      

Confidence Interval  mean α = 0,02     and   α/2  =  0,01

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We compute t(s) as

t(s)  =  ( μ - μ₀ ) / s /√n

t(s)  = ( 48061 - 47500 )/ 2351/√86

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Read 2 more answers
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