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Temka [501]
3 years ago
15

A system of equations is shown below.

Mathematics
1 answer:
Nimfa-mama [501]3 years ago
5 0
-3x + 7y = -16 . . . (1)
-9x + 5y = 16 . . . .(2)

(1) x 3 => -9x + 21y = -48 . . . (3)
(2) - (3) => -16y = 64 . . . (4)

Required equivalent system of equations is
-9x + 5y = 16
-16y = 64
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Answer:

<em>H</em>₀: <em>μ₁ = μ₂= μ₃</em>

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Analysis of variance or ANOVA test is used to determine whether the means of different groups are similar or not.

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H_{0}: \mu_{1}= \mu_{2}= \mu_{3}...= \mu_{n}\\H_{a}: At\ least\ one\ of\ the\ means\ is\ different

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The hypothesis for this test can be defined as follows:

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<em>Hₐ: </em>The mean bone mineral density is different for the three different groups, i.e. at least one of the means is different.

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