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Dennis_Churaev [7]
3 years ago
15

Solve the equation x−2.71=4.12

Mathematics
2 answers:
Airida [17]3 years ago
5 0

Answer:

6.83

Step-by-step explanation:

x-2.71=4.12    | +2.71

x=6.83

zmey [24]3 years ago
5 0

6.83

Step-by-step explanation:

6.83-2.71= 4.12

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Answer:

The null and alternative hypotheses are:

H_{0}: \mu = 170

H_{a}: \mu >170

Under the null hypothesis, the test statistic is:

z=\frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}} }

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z_{critical} = 1.28

Since the test statistic is greater than the z critical value, we therefore, reject the null hypothesis and conclude that there is sufficient evidence to support the claim that the university students weigh more than the population.


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3 years ago
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elena-s [515]

Answer:

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Step-by-step explanation:

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5 0
2 years ago
HELP!
Ber [7]
A)
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B)
Pythagerean Theorum: 
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Which product is better to buy small 18 ounces for $3.25 or large 32 ounces for 5.50
labwork [276]

Answer:

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Step-by-step explanation:

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