2 years ago

Can someone help me plz

Mathematics

1 answer:

FrozenT [24]2 years ago

3 0

Answer:

I cant see it?

Step-by-step explanation:

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Who ever help I will give you the brainliest answer

Gala2k [10]

Answer:

just do it Like Nikey

Step-by-step explanation:

lol

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2 years ago

An automobile manufacturer claims that its jeep has a 53.9 miles/gallon (MPG) rating. An independent testing firm has been contr

Advocard [28]

Answer:

Value of the test statistic, $z_{test} = - 1.17$

Step-by-step explanation:

Null hypothesis, $H_{0}: \mu = 53.9$

Alternative hypothesis, $H_{a} : \mu \neq 53.9$

Sample mean, $\bar{X} = 53.7$

Sample size, n = 110

Standard deviation, $\sigma = 1.8$

Significance level, $\alpha = 0.02$

The value of the test statistics is given by the formula:

$z_{test} = \frac{\bar{X} - \mu}{\frac{\sigma}{\sqrt{n} } } \\z_{test} = \frac{53.7 - 53.9}{\frac{1.8}{\sqrt{110} } } \\z_{test} = - 1.17$

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2 years ago

Susan earned $191.25 last week. She is paid $8.50/h. How many hours did she work?

Oksanka [162]

Answer:

22.5 hours

Step-by-step explanation:

191.25 divided by 8.50 hours will get you the total amount of hours she worked

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2 years ago

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one circle has a circumference of 12 pi . another circle has a circumference of 32 pi . what is the ratio of the radius of the s

SOVA2 [1]

circumference=pi * 2 radius=12pi, radius(small)=6;
circumference=pi * 2 radius=32pi, radius(small)=16;
6:16=3:8

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2 years ago

The _________ is the appropriate measure to describe the spread.

Alla [95]

Answer:

interquartile range

Step-by-step explanation:

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3 years ago

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