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3 years ago

Помогите решить контрошу братья

Mathematics

1 answer:

LUCKY_DIMON [66]3 years ago

7 0

Answer:

I don’t understand:/

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4 years ago

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Consider the following hypothesis test:

Scrat [10]

Answer:

$z=\frac{27.4-26}{\frac{6}{\sqrt{40}}}=1.48$

The p value can be founded with the following probability:

$p_v =P(z>1.476)=0.0694$

Step-by-step explanation:

Information given

$\bar X=27.4$ represent the sample mean

$\sigma=6$ represent the population deviation

$n=40$ sample size

$\mu_o =26$ represent the value to verify

z would represent the statistic

$p_v$ represent the p value

System of hypothesis

We want to check if the true mean for this case is higher than 26, the system of hypothesis would be:

Null hypothesis: $\mu \leq 26$

Alternative hypothesis: $\mu > 26$

The statistic is given by:

$z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}$ (1)

Replacing the info we got:

$z=\frac{27.4-26}{\frac{6}{\sqrt{40}}}=1.48$

The p value can be founded with the following probability:

$p_v =P(z>1.476)=0.0694$

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3 years ago

Which graph represents the function y=3x squared

swat32

Answer:

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Step-by-step explanation:

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4 years ago

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Answer:

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Step-by-step explanation:

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Which expression is equivalent to 4 x minus 9 + 6 y + 17 x?

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Answer:

the answer is a

Step-by-step explanation: because i did the math

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