3 years ago

1/3^6 what is the value

Mathematics

1 answer:

Dovator [93]3 years ago

8 0

Answer:1/ 729 is the Exact value what are your options??

Step-by-step explanation:

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Using the simple random sample of weights of women from a data set, we obtain these sample statistics: nequals45 and x overbar

Tomtit [17]

Answer: (141.1, 156.48)

Step-by-step explanation:

Given sample statistics : $n=45$

$\overline{x}=148.79\text{ lb}$

$\sigma=31.37\text{ lb}$

a) We know that the best point estimate of the population mean is the sample mean.

Therefore, the best point estimate of the mean weight of all women = $\mu=148.79\text{ lb}$

b) The confidence interval for the population mean is given by :-

$\mu\ \pm E$ , where E is the margin of error.

Formula for Margin of error :-

$z_{\alpha/2}\times\dfrac{\sigma}{\sqrt{n}}$

Given : Significance level : $\alpha=1-0.90=0.1$

Critical value : $z_{\alpha/2}=z_{0.05}=\pm1.645$

Margin of error : $E=1.645\times\dfrac{31.37}{\sqrt{45}}\approx 7.69$

Now, the 90% confidence interval for the population mean will be :-

$148.79\ \pm\ 7.69 =(148.79-7.69\ ,\ 148.79+7.69)=(141.1,\ 156.48)$

Hence, the 90% confidence interval estimate of the mean weight of all women= (141.1, 156.48)

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3 years ago

What's the chance of an 80 percent chance happening five times in a row?

Anuta_ua [19.1K]

I think it is 4%?
If not forgive me.

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3 years ago

Helppppppppppppppppppp me Write this rate as a unit rate. 7/5 miles 2/3 hour

malfutka [58]

Answer: Your answer is 3.5 miles per hour.

Step-by-step explanation:

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3 years ago

Find the volume of the sphere. Leave your answer in terms of π

densk [106]

(4/3)(4)^3
Volume 85.3

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3 years ago

Can someone help me on this plzzz

Ne4ueva [31]

The answer is 20 y=9 times that and y= 9 times that also u subtract and then u get 20.

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3 years ago

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