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Effectus [21]
3 years ago
14

Help show work to thank you! Step by step for brainly

Mathematics
1 answer:
WINSTONCH [101]3 years ago
3 0

Answer:

22 11/12 feet

Step-by-step explanation:

44 3/4−21(5/6)= 179/4−21(5/6)=179/4−131/6

==

275/12=

22 11/12

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your have less bedroom to work with.

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Step-by-step explanation:

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When the sample size and the sample proportion remain the same, a 90 percent confidence interval for a population proportion p w
deff fn [24]

Answer:

A 90% confidence interval for <em>p</em> will be <u>narrower </u>than the 99% confidence interval.

Step-by-step explanation:

The formula to compute the (1 - <em>α</em>) % confidence interval for a population proportion is:

CI=\hat p\pm z_{\alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n}}

Here \hat p is the sample proportion.

The margin of error of the confidence interval is:

MOE= z_{\alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n}}

The MOE is dependent on:

  1. Confidence level
  2. Standard deviation
  3. Sample size

The MOE is directly related to the confidence level and standard deviation.

So if any of the two increases then the MOE also increases, thus widening the confidence interval.

And the MOE is inversely related to the sample size.

So if the sample increases the MOE decreases and vice versa.

It is provided that the sample size and the sample proportion are not altered.

The critical value of <em>z</em> for 90% confidence level is:

z_{\alpha/2}= z_{0.10/2}=z_{0.05}=1.645

And the critical value of <em>z</em> for 99% confidence level is:

z_{\alpha/2}= z_{0.05/2}=z_{0.05}=1.96

So as the confidence level increases the critical value increases.

Thus, a 90% confidence interval for <em>p</em> will be narrower than the 99% confidence interval.

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3 years ago
Patty is ordering vests for her scout troop to wear in the Veterans Day parade. She ordered 12 vests from the Festive Features c
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Answer:

Step-by-step explanation:

7 0
3 years ago
Is y = 6x direct, inverse or neither?
Morgarella [4.7K]
Direct variation always has the relationship y=kx.  Indirect inverse variation always has the relationship y=k/x.

In this case y=kx, where k=6, so this is a direct variation.


7 0
3 years ago
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