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Sav [38]
1 year ago
14

What is the domain of g

Mathematics
1 answer:
olga nikolaevna [1]1 year ago
6 0

Answer:

A

Step-by-step explanation:

The domain of g(x) is the set of all real numbers. Meaning that all the numbers between the min and max of g would be -7 ≤ x ≤ 7.

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Allied Corporation is trying to sell its new machines to Ajax. Allied claims that the machine will pay for itself since the time
kvasek [131]

Answer:

z(s) is in the acceptance region. We accept H₀  we did not find a significantly difference in the performance of the two machines therefore we suggest not to buy a new machine

Step-by-step explanation:

We must evaluate the differences of the means of the two machines, to do so, we will assume a CI  of 95%, and as the interest is to find out if the new machine has better performance ( machine has a bigger efficiency or the new machine produces more units per unit of time than the old one) the test will be a one tail-test (to the left).

New machine

Sample mean                  x₁ =    25

Sample variance               s₁  = 27

Sample size                       n₁  = 45

Old machine

Sample mean                    x₂ =  23  

Sample variance               s₂  = 7,56

Sample size                       n₂  = 36

Test Hypothesis:

Null hypothesis                         H₀             x₂  -  x₁  = d = 0

Alternative hypothesis             Hₐ            x₂  -  x₁  <  0

CI = 90 %  ⇒  α =  10 %     α = 0,1      z(c) = - 1,28

To calculate z(s)

z(s)  =  ( x₂  -  x₁ ) / √s₁² / n₁  +  s₂² / n₂

s₁  = 27     ⇒    s₁²  =  729

n₁  = 45    ⇒   s₁² / n₁    = 16,2

s₂  = 7,56   ⇒    s₂²  = 57,15

n₂  = 36     ⇒    s₂² / n₂  =  1,5876

√s₁² / n₁  +  s₂² / n₂  =  √ 16,2  + 1.5876    = 4,2175

z(s) = (23 - 25 )/4,2175

z(s)  =  - 0,4742

Comparing z(s) and  z(c)

|z(s)| < | z(c)|  

z(s) is in the acceptance region. We accept H₀  we did not find a significantly difference in the performance of the two machines therefore we suggest not to buy a new machine

The very hight dispersion of values s₁ = 27 is evidence of frecuent values quite far from the mean

3 0
3 years ago
Solve for y<br> y + 8 = 2
ExtremeBDS [4]
Y + 8 = 2
-8 =-8
Y=-6
4 0
3 years ago
Help<br><br> The diameter of the circle is 8in
-BARSIC- [3]
I believe your answer is 25.12
7 0
2 years ago
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Three salesmen work for the same company, selling the same product. And, although they are all paid on a weekly basis, each sale
masha68 [24]

Answer:

<u>Equations for each salesman:</u>

  • A. p(s) = 65s
  • B. p(s) = 40s + 300
  • C. p(s) = 900

<u>When s = 0, s= 1, s = 10 each of the gets paid:</u>

  • A. p(0) = 0, p(1) = 65, p(10) = 650
  • B. p(0) = 300, p(1) = 340, p(10) = 700
  • C. p(0) = p(1) = p(10) = 900

<u>The above numbers as ordered pairs:</u>

  • <u>                  A                B               C          </u>
  • s = 0  |    (0, 0)       | (0, 300)    | (0, 900)
  • s = 1   |    (1, 65)      | (1, 340)     | (1, 900)
  • s = 10 |    (10, 650) | (10, 700)   | (10, 900)
7 0
3 years ago
Name an angle supplementary to <br> Please help I suck at this!!
Basile [38]

Answer:

<BOD

Step-by-step explanation:

Supplementary angles add up to 180, but remember that a 180 degree angle is also just a straight line! <AOB takes up half of Line AD, while we can see that <BOD takes up the other half of the line.

5 0
3 years ago
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