If all the dimensions of a cube are multiplied by five, the surface area of the cube will change by a factor of ten. TrueFalse P
1 answer:
Answer:
False (see explanation)
Step-by-step explanation:
Let say that the edge length of a cube is x. The surface area is ,. Now if we take five times the x (5x) we get that the surface area is
. We see that indeed, the surface are changes not by a factor of ten but 5. But then again, if you really mean <em>factor</em> of 10. Then it will be True, as 10 is divisible by 5. There you need to decide for yourself :)
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Answer:
The calculated t-test = 1.717 < 1.6604 at 0.05 level of significance
Null hypothesis is accepted at 0.05 level of significance
A company has developed a training procedure is significantly improve scores
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given sample mean (x⁻ ) = 517
sample standard deviation (s) =90
Mean of the Population (μ) =500
<em>Null Hypothesis :- H₀ : </em> (μ) =500
Alternative Hypothesis : H₁ : μ ≠ 500
<u><em>Step(ii)</em></u>:-
Test statistic
t = 1.717
<em>Level of significance</em>
∝ = 0.05
t₀.₀₅ = 1.6604
The calculated t-test = 1.717 < 1.6604 at 0.05 level of significance
<u><em>Conclusion</em></u>:-
Null hypothesis is accepted at 0.05 level of significance
A company has developed a training procedure is significantly improve scores