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pogonyaev
2 years ago
10

What is the value of the function f(x) = 2x + 3 for an input value of 3? (a)6(b) 12(c) 3 (d)9

Mathematics
2 answers:
alukav5142 [94]2 years ago
6 0

Answer: I dont know the answer but i did some research and i got you some notes i hope they help!

Step-by-step explanation: :D

Download pdf
anastassius [24]2 years ago
4 0

Answer:

6

Step-by-step explanation:

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A test is made of H subscript 0 colon space mu space equals space 43 space space v e r s u s space space H subscript 1 colon spa
sweet [91]

Answer:

The calculated value Z = 1.39 <1.96 at 0.05 level of significance

The null hypothesis is accepted

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the mean of the Population = 43

Given that the mean of the sample = 47

Given that the standard deviation of the Population = 25

Given that the sample size 'n' = 76

<u><em>Step(ii):-</em></u>

<u><em>Null hypothesis:H₀: μ = 43</em></u>

<u><em>Alternative Hypothesis: H₁: μ ≠ 43</em></u>

Test statistic

           Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }

          Z = \frac{47-43 }{\frac{25}{\sqrt{76} } }

          Z = 1.39

Level of significance = 0.05

The critical value = 1.96

<u><em>Final answer:-</em></u>

<em>The calculated value Z = 1.39 <1.96 at 0.05 level of significance</em>

<em>The null hypothesis is accepted </em>

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Step-by-step explanation:

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