Given the building layout for Store A, Store B, Store

Which solid has two faces, zero lateral faces, two bases, zero vertices, and zero edges?

coldgirl [10]

A prism is what this solid is called

7 0

3 years ago

The revenue, cost, and profit functions for a line of cell phone cases is shown. Identify the location on the profit function wh

grigory [225]

Answer:

Im pretty sure the profit location is at the center of the rise

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Find the area of each figure. Please help <3 it would be appreciated! (30 points)

Annette [7]

Answer:

$1,824 \: {in}^{2}$

Step-by-step explanation:

Area of the figure = Area of rectangle with dimensions 48 in and 32 in + Area of triangle with base 48 in and height 12 in.

$= 48 \times 32 + \frac{1}{2} \times 48 \times 12 \\ \\ = 1,536 + 24 \times 12 \\ \\ = 1,536 + 288 \\ \\ = 1,824 \: {in}^{2}$

6 0

3 years ago

A research center claims that at least 4545% of adults in a certain country think the government is not aggressive enough in pu

frez [133]

Answer:

$z=\frac{0.39 -0.45}{\sqrt{\frac{0.45(1-0.45)}{700}}}=-3.19$

$p_v =P(z$

So the p value obtained was a very low value and using the significance level given $\alpha=0.01$ we have $p_v$ so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 1% of significance the proportion of interst is significantly lower than 0.45 and the claim is not appropiate

Step-by-step explanation:

Data given and notation

n=700 represent the random sample taken

$\hat p=0.39$ estimated proportion of interest

$p_o=0.7$ is the value that we want to test

$\alpha=0.01$ represent the significance level

Confidence=99% or 0.99

z would represent the statistic (variable of interest)

$p_v$ represent the p value (variable of interest)

Concepts and formulas to use

We need to conduct a hypothesis in order to test the claim that the true proportion is at least 0.45.:

Null hypothesis: $p\geq 0.45$

Alternative hypothesis: $p < 0.45$

When we conduct a proportion test we need to use the z statistic, and the is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

The One-Sample Proportion Test is used to assess whether a population proportion $\hat p$ is significantly different from a hypothesized value $p_o$ .

Calculate the statistic

Since we have all the info requires we can replace in formula (1) like this:

$z=\frac{0.39 -0.45}{\sqrt{\frac{0.45(1-0.45)}{700}}}=-3.19$

Statistical decision

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.

The significance level provided $\alpha=0.01$ . The next step would be calculate the p value for this test.

Since is a lef tailed test the p value would be:

$p_v =P(z$

So the p value obtained was a very low value and using the significance level given $\alpha=0.01$ we have $p_v$ so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 1% of significance the proportion of interst is significantly lower than 0.45 and the claim is not appropiate

3 0

4 years ago

What is an equation of the line, in point-slope form, that passes through the given point and has the given slope?

MAXImum [283]

Answer:

equation of line:

y = mx + b....(1)

slope = m = 2/3

y-intercept = b = ?

putting the point (5,6) and slope(2/3) in equation(1)

6 = (2/3)(5) + b

6 = 10/3 + b

b = 6 - 10/3

b = (18 - 10)/3

b = 8/3

putting value of b and m in equation(1)

y = (2/3)x + 8/3

Step-by-step explanation:

5 0

3 years ago