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3 years ago

a rectangular box of rice is shown below. what is the greatest amount or rice, in cubic inches, that the box can hold?

Mathematics

2 answers:

Gemiola [76]3 years ago

5 0

Answer:

nbbbbbbb

Step-by-step explanation:

bagirrra123 [75]3 years ago

3 0

Answer:

744.518 in^3

Step-by-step explanation:

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A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained p

Studentka2010 [4]

Using the z-distribution, it is found that the needed sample sizes are:

a) 242

b) 1842

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which z is the z-score that has a p-value of $\frac{1+\alpha}{2}$ .

The margin of error is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

99% confidence level, hence $\alpha = 0.99$ , z is the value of Z that has a p-value of $\frac{1+0.99}{2} = 0.995$ , so $z = 2.575$ .

Item a:

The estimate is:

$\pi = 0.223 - 0.189 = 0.034$

The sample size is <u>n for which M = 0.03</u>, then:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$0.03 = 2.575\sqrt{\frac{0.034(0.966)}{n}}$

$0.03\sqrt{n} = 2.575\sqrt{0.034(0.966)}$

$\sqrt{n} = \frac{2.575\sqrt{0.034(0.966)}}{0.03}$

$(\sqrt{n})^2 = \left(\frac{2.575\sqrt{0.034(0.966)}}{0.03}\right)^2$

$n = 241.97$

Rounding up, a sample of 242 is needed.

Item b:

No prior estimates, hence $\pi = 0.5$ is used.

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$0.03 = 2.575\sqrt{\frac{0.5(0.5)}{n}}$

$0.03\sqrt{n} = 2.575\sqrt{0.5(0.5)}$

$\sqrt{n} = \frac{2.575\sqrt{0.5(0.5)}}{0.03}$

$(\sqrt{n})^2 = \left(\frac{2.575\sqrt{0.5(0.5)}}{0.03}\right)^2$

$n = 1841.8$

Rounding up, a sample of 1842 is needed.

For more on the z-distribution, you can check brainly.com/question/25404151

5 0

3 years ago

Using an applet, we found that the theory-based test results in a t-statistic of -7.25 and p-value less than 0.0001. State your

11111nata11111 [884]

Answer:

b. We have very strong evidence that the long-run average guess of the population size of Milwaukee, Wisconsin is smaller with the anchor of Green Bay than with the anchor of Chicago.

Step-by-step explanation:

Smaller p-value indicates a strong evidence in favor of the alternative hypothesis which means we can reject the null hypothesis. In the given scenario the p-value is 0.0001 which is very small. There is sufficient evidence for the rejection of null hypothesis.

7 0

3 years ago

32^2+42^2<br> pts 4fre<br> yes im aware i spelled it wrong.

Dima020 [189]

Answer:

2788

Step-by-step explanation:

To square a number means to multiply it by itself:

$32^2+42^2=32 \times 32+42 \times 42=1024+1764=2788$

7 0

3 years ago

Represent √10 , √17 and √13 in a number line.

Contact [7]

Answer:

-------------------------------------------------------------

I I I

√10 √13 √17

Step-by-step explanation:

√10 is the smallest value, √13 is the middle value, and √17 is the largest value.

3 0

3 years ago

Determine the intervals on which the function is increasing, decreasing, and constant.

iogann1982 [59]

Answer:

A. Increasing on (-infinitity, infinity)

Step-by-step explanation:

If you look at the graph from left to right, the line is always going up towards higher numbers, meaning that it's always increasing.

5 0

3 years ago