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Viefleur [7K]
3 years ago
11

Simplify: (–2x+y)(-58 y) O 10x10, 10xv2 10xy 10x10 ,

Mathematics
1 answer:
alekssr [168]3 years ago
8 0

Answer:

Choice C

Step-by-step explanation:

(-2x^2y)(-5x^5y^3)=\\\\(-2)(-5)\times (x^2)(x^5)\times (y)(y^3)=\\\\10x^7y^4

Hope this helps!

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Answer:

(a) The confidence interval is: 0.0304 ≤ π ≤ 0.0830.

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Step-by-step explanation:

(a) The confidence interval for p (proportion) can be calculated as

p \pm z*\sigma_{p}

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NOTE: π is the proportion ot the population, but it is unknown. It can be estimated as p.

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For a 95% two-sided confidence interval, z=±1.96, so

\\LL = p-z*\sigma=0.0567 - (1.96)(0.0134) = 0.0304\\UL =p+z*\sigma= 0.0567 + (1.96)(0.0134) = 0.0830\\\\

The confidence interval is: 0.0304 ≤ π ≤ 0.0830.

(b) The confidence interval now has only an upper limit, so z is now 1.64.

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The confidence interval is: -∞ ≤ π ≤ 0.0787.

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