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1 year ago

Select the correct answer from each drop-down menu.

Mathematics

1 answer:

MAXImum [283]1 year ago

7 0

Answer:

second nap,second nap

Step-by-step explanation:

just took it on plato and got 100%

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PLEASEEE HELP FAST SOLVE FOR VOLUME

snow_tiger [21]

Do you have a (a,b,c,d) type of answer?

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2 years ago

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Please help me with this

Illusion [34]

Answer:

2x for the first term

The whole thing is 2x+3

Step-by-step explanation:

Think of it like normal division

What will get the closest answer to 2x^2+x?

2x*x-1=2x^2-2x

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2 years ago

How to simplify the ratio 30ml:45ml

svlad2 [7]

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3 years ago

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Jackson wants to divide a 3/4 pound box of trial mix into small bags.Each of the bags will hold 1/12 pound of trail mix.How many

maksim [4K]

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2 years ago

A researcher surveyed 150 high school students and found that 68% played a musical insturment. What would be a reasonable range

maria [59]

Answer:

The reasonable range for the population mean is (61%, 75%).

Step-by-step explanation:

The interval estimate of a population parameter is an interval of values that consist of the values within which the true value of the parameter lies with a certain probability.

The mean of the sampling distribution of sample proportion is, $\hat p$ .

One of the best interval estimate of population proportion is the 95% confidence interval for proportion,

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

Given:

n = 150

$\hat p$ = 0.68

The critical value of <em>z</em> for 95% confidence level is:

$z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96$

Compute the 95% confidence interval for proportion as follows:

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

$=0.68\pm1.96\sqrt{\frac{0.68(1-0.68)}{150}}\\\\=0.68\pm 0.0747\\\\=(0.6053, 0.7547)\\\\\approx (0.61, 0.75)$

Thus, the reasonable range for the population mean is (61%, 75%).

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3 years ago