2 years ago

I need to know these answers! My home work is due in an hour and I don’t know how to do this

Mathematics

1 answer:

kipiarov [429]2 years ago

7 0

The explanation is here. the rest of the questions must be do by yourself.

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I forgot how to solve equations such as 3x+5y=-5. Can you give me examples?

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3 years ago

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Suppose we are testing the null hypothesis H 0 mu=20 and the alternative H iu =20 , normal population with sigma=6 A random samp

cupoosta [38]

Answer:

The value of the test statistic is $z = -1.5$

Step-by-step explanation:

The formula for the test statistic is:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the statistic, $\mu$ is the mean, $\sigma$ is the standard deviation and n is the number of observations.

In this problem, we have that:

$\mu = 20, X = 17, \sigma = 6, n = 9$

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{17 - 20}{\frac{6}{\sqrt{3}}}$

$z = -1.5$

The value of the test statistic is $z = -1.5$

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3 years ago

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harkovskaia [24]

Answer:D

Step-by-step explanation:

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2 years ago

Express 6/2+i

Ronch [10]

B.
Is the correct answer

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2 years ago

Note angles not necessarily drawn to scale

kondaur [170]

Answer:

Step-by-step explanation:

Angles CGE and 30° are vertical angles.

Thus, Angle CGE is thus 30°.

Angle CGE and Angle x are complementary, so x = 90° - 30° = 60°

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3 years ago

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