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Lina20 [59]
3 years ago
7

(-2,+

"latex-formula">-7)x^{2}
Mathematics
1 answer:
rewona [7]3 years ago
6 0

(-2 = √x - 7)x² (calculate)

(-9 = √x)x² (remove the parantheses)

-9x² + √x x²

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b P<0.05   rejected H

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The mean is the average . the sum of number over the number of observation

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H_{0}: u1≤u2

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find the degree of freedom(\frac{s1^2}{n1} +\frac{s2^2}{n2} )^2/(\frac{s1^2}{n1} )^2/n1-1+(s2^2/n2)^2/n2-1\\\\(\frac{59.42^2}{16} +\frac{51.7476^2}{12} )^2/(\frac{59.42^2}{16} )^2/16-1+(51.74^2/12)^2/12-1

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Answer:

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Step-by-step explanation:

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