3 years ago

Look at the photo, please.

Mathematics

2 answers:

ruslelena [56]3 years ago

4 0

Answer:

×=6

good luck!!

goldenfox [79]3 years ago

4 0

x=6 because -3(x-4)+x=2x-12 is -3x+12+x=2x-12 which is -2x+12=2x-12

12=4x-12 leads to 24=4x which is 6=x

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3 years ago

uppose a large telephone manufacturer has a problem with excessive customer complaints and consequent returns of the phones for

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Answer:

The answer is "294.2075".

Step-by-step explanation:

Given:

$\hat{p} = 0.5 \\\\1 - \hat{p} = 1 - 0.5 = 0.5\\\\E = 4\% = 0.04\\\\$

At $83\%$ confidence level the z is ,

$\alpha = 1 - 83\% = 1 - 0.83 = 0.17\\\\\frac{\alpha}{2} = \frac{0.17}{2} = 0.085\\\\Z_{\frac{\alpha}{2}} = Z_{0.085} = 1.3722\\\\n = (\frac{Z_{\frac{\alpha}{2}}}{E})^2 \times \hat{p} \times (1 - \hat{p})\\\\$

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