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3 years ago

(4yz)-3(x) Y=4, z=2, x=-3

Mathematics

1 answer:

vekshin13 years ago

8 0

Answer:

=288

Step-by-step explanation:

(4yz)-3(x)

(4(4)(2))-3(-3)

(4x8)x9

32x9

288

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Arlecino [84]

Answer:

The claim is rejected

Step-by-step explanation:

Claim: UCF is advertising their bachelor in Economics with the statistic that the starting salary of a graduate with a bachelor in economics is $ 48,500 according to Payscale (2013-13).

Null hypothesis: $H_0: \mu = 48500$

Alternate hypothesis : $H_a : \mu \neq 48500$

n = 50

Since n is more than 30 .

So we will use Z test

x=43350

Standard deviation = 15000

$Z=\frac{x-\mu}{\frac{s}{\sqrt{n}}}\\Z=\frac{43350-48500}{\frac{15000}{\sqrt{50}}}\\Z=-2.42$

Refer the z table

p value = 0.00776

$\alpha = 0.01$

p value < $\alpha$

So, We are failed to accept null hypothesis

Hence The claim is rejected

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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Bogdan [553]

Not a enogh information so write more down

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sam's music teacher told him to practice his trombone for X amount of hours. he spent X amount of hours practicing did he practi

Crank

Yes if he practices X amount of hours and is told to practice X amount of hours than he practiced long enough

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3 years ago

Select all that apply.

Musya8 [376]

Answer:

The answer to this question is 2.137931034

Step-by-step explanation:

Just divide it by a calculator.

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2 years ago