The larger of two numbers is 15 more than three times the smaller number. If the sum of the two numbers is 63, find the numbers.

a planter is shaped like a right rectangular prism its height, h is 5 4/5 inches. The length, L is 14 1/2 inches ,and its width,

sveta [45]

Answer:

There appears to be some part of the question missing. Assuming it asks about the volume, the volume is:

Step-by-step explanation:

The volume of a right rectangular prism may be calculated using the formula:

whl, where w is width, h is height and l is length.

In this case it is hlw or (5.8*14.5*3.5) = 294.35 cubic inches.

7 0

3 years ago

Find radius of the sphere from the following volume

nordsb [41]

Can you send a picture by chance?

3 0

2 years ago

Please help me with this

abruzzese [7]

binomial

trinomial

binomial

trinomial

3 0

3 years ago

A large manufacturer that sells consumer products on-line wishes to publicize its customer satisfaction in an advertisement. Spe

sergejj [24]

Answer:

$z=\frac{0.93 -0.9}{\sqrt{\frac{0.9(1-0.9)}{400}}}=2$

$p_v =P(z>2)=0.0228$

So the p value obtained was a very low value and using the significance level assumed $\alpha=0.05$ we have $p_v$ so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 5% of significance the proportion of people who say yes is significantly higher than 0.9 or 90%.

Step-by-step explanation:

Data given and notation

n=400 represent the random sample taken

X=372 represent the number of people who say yes

$\hat p=\frac{372}{400}=0.93$ estimated proportion of people who say yes

$p_o=0.9$ is the value that we want to test

$\alpha$ represent the significance level

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 that more than 90% of its costumers would tell their friend to buy a product from the manufacturer.:

Null hypothesis: $p\leq 0.9$

Alternative hypothesis: $p > 0.9$

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:

$z=\frac{0.93 -0.9}{\sqrt{\frac{0.9(1-0.9)}{400}}}=2$

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 assumed for this case is $\alpha=0.05$ . The next step would be calculate the p value for this test.

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

$p_v =P(z>2)=0.0228$

So the p value obtained was a very low value and using the significance level assumed $\alpha=0.05$ we have $p_v$ so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 5% of significance the proportion of people who say yes is significantly higher than 0.9 or 90%.

8 0

3 years ago

Which is an equation of the line with<br> slope that contains the point (6, 4)?

Vesna [10]

Answer:

y=x-2

Step-by-step explanation:

x=6 and y=4, so simplest equation is y=x-2

You can have infinity lines with the point (6,4). Another example is $y=\frac{1}{2} x+1$

8 0

3 years ago