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4 years ago

HELPPPPPOPP ASAPPPPPPPPP PLEASSSEEEEEEE

Mathematics

1 answer:

FinnZ [79.3K]4 years ago

6 0

Answer:

-11 - 5z = 6(5z + 4)

-11 - 5z = 30z + 24

-35 = 35z

z = -1

0 = -5y - 2y

5y = -2y

5 = -2

no solutions

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3 years ago

. Compute the required sample size given the required confidence in the sample results is 99.74% (Z score of 3). The level of al

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Answer:

900 sample size

Step-by-step explanation:

To determine the sample size for a proportion, the margin of error formula is used to determine this:

$E=Z_{\frac{\alpha}{2} }*\sqrt{\frac{\hat p \hat q}{{n} }$

$n=\hat p \hat q*(\frac{Z_{\frac{\alpha}{2} }}{E} )^2$

Where p is the proportion, E is the margin of error, n is the sample size, q = 1 - p, $Z_\frac{\alpha }{2}$ is the z score.

Since the proportion is not known, the sample size needed to guarantee the confidence interval and error is at p = 0.5 and q = 1 - p = 1 - 0.5 = 0.5

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$n=0.5*0.5*(\frac{3}{0.05} )^2\\\\n = 900$

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3 years ago

The number of chips of different colors in Rick's bag is shown below

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1/9

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4 years ago

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Step-by-step explanation:

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Answer:

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