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2 years ago

A website had 826,140 hits last month what is the value of the 8 in 826,140

1 answer:

8 0

800,000. This is because the 8 is in the hundred thousandth spot. Because of this, the value of the 8 is eight hundred thousand.

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Math question please help me

Vinvika [58]

Answer:

Step-by-step explanation:

There are 140 women in the 5% sample. to find an estimate of all the women we can multiply but by 20. 5% x 20 = 100%. 140 x 20 = 2,800.

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2 years ago

The weights of 67 randomly selected axles were found to have a variance of 3.85. Construct the 80% confidence interval for the p

VLD [36.1K]

Answer:

$3.13$

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 67

Variance = 3.85

We have to find 80% confidence interval for the population variance of the weights.

Degree of freedom = 67 - 1 = 66

Level of significance = 0.2

Chi square critical value for lower tail =

$\chi^2_{1-\frac{\alpha}{2}}= 51.770$

Chi square critical value for upper tail =

$\chi^2_{\frac{\alpha}{2}}= 81.085$

80% confidence interval:

$\dfrac{(n-1)S^2}{\chi^2_{\frac{\alpha}{2}}} < \sigma^2 < \dfrac{(n-1)S^2}{\chi^2_{1-\frac{\alpha}{2}}}$

Putting values, we get,

$=\dfrac{(67-1)3.85}{81.085} < \sigma^2 < \dfrac{(67-1)3.85}{51.770}\\\\=3.13$

Thus, (3.13,4.91) is the required 80% confidence interval for the population variance of the weights.

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2 years ago

Convert 8 millimiter to fluid ounces.

Flauer [41]

Those are two different types of measurments :) are you sure you typed it correctly?

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3 years ago

What percent of 126 is 22?

zalisa [80]

It is 17%, hope this helps

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2 years ago

Read 2 more answers

Please answer the question in the picture

Vesnalui [34]

The answer is A and C

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2 years ago