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SCORPION-xisa [38]
3 years ago
13

You notice that the interval estimate for two values overlaps. what might this indicate?

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
7 0
This likely to infer that both of the points represents a genuine difference in the general population. Though one may absolutely have the same value in the general population, although one appears slightly higher, likely due to the variability of the sample.
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Daniel dives into a swimming pool. The height of his head is represented by the function h(t) = -8t2 - 28t + 60, where t is the
8_murik_8 [283]
So, h(t) is how far is Daniel's head from the surface of the water, namely the surface itself is when the height is nill, so his head is at the surface and the height of it is just 0, thus h(t)  = 0.  Namely, what is "t" when h(t) is 0?

\bf h(t)=-8t^2-28t+60\implies \stackrel{h(t)}{0}=-8t^2-28t+60
\\\\\\
0=-2t^2-7t+15\implies 2t^2+7t-15=0\implies (2t+3)(t-5)=0
\\\\\\
\begin{cases}
2t+3=0\implies 2t=-3\implies &t=-\frac{3}{2}\\\\
t-5=0\implies &\boxed{t=5}
\end{cases}

clearly the seconds cannot be a negative unit, so is not -3/2.
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3 years ago
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Step-by-step explanation:

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4 0
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Nadya [2.5K]

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