Ask question

Ask question

All categories

2 years ago

6

I have till 6 before she grades all assignments for good please help (putting this w all questions) personally i’m shaking pleas

e help ..

1 answer:

lukranit [14]2 years ago

7 0

Answer:

constant for the first blank

liner equation=y-mx-b form

liner graph blank= straight

i forgot the other ones

Step-by-step explanation:

You might be interested in

An automobile manufacturer would like to know what proportion of its customers are not satisfied with the service provided by th

butalik [34]

Answer:

a) A sample size of 5615 is needed.

b) 0.012

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

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

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error is:

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

99.5% confidence level

So $\alpha = 0.005$ , z is the value of Z that has a pvalue of $1 - \frac{0.005}{2} = 0.9975$ , so $Z = 2.81$ .

(a) Past studies suggest that this proportion will be about 0.2. Find the sample size needed if the margin of the error of the confidence interval is to be about 0.015.

This is n for which M = 0.015.

We have that $\pi = 0.2$

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

$0.015 = 2.81\sqrt{\frac{0.2*0.8}{n}}$

$0.015\sqrt{n} = 2.81\sqrt{0.2*0.8}$

$\sqrt{n} = \frac{2.81\sqrt{0.2*0.8}}{0.015}$

$(\sqrt{n})^{2} = (\frac{2.81\sqrt{0.2*0.8}}{0.015})^{2}$

$n = 5615$

A sample size of 5615 is needed.

(b) Using the sample size above, when the sample is actually contacted, 12% of the sample say they are not satisfied. What is the margin of the error of the confidence interval?

Now $\pi = 0.12, n = 5615$ .

We have to find M.

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

$M = 2.81\sqrt{\frac{0.12*0.88}{5615}}$

$M = 0.012$

7 0

3 years ago

I neeed help quickly thanks.

Marianna [84]

Answer:

12 Math Club students

Step-by-step explanation:

2 vans each holding 6 students = 12 because 2x6 = 12

4 0

3 years ago

Two Integers, a and b, have different signs. The absolute value of integer a is divisible by the absolute

klemol [59]

Answer:

ssorry i am 2ncd grade

Step-by-step explanation:

7 0

3 years ago

The square root of 5 is between which two integers? Explain your reasoning.

tankabanditka [31]

The square root of 5 is the positive real number that, when multiplied by itself, gives the prime number 5. It is more precisely called the principal square root of 5, to distinguish it from the negative number with the same property

hope it helps

8 0

3 years ago

What is 89-99•99-102

kicyunya [14]

Greetings!

Follow PEDMAS:
Parenthesis
Exponents
Division/Multiplication
Addition/Subtraction

$89-99*99-102$
Multiply 99*99.
$89-9801-102$
Subtract from Left to Right.
$-9712-102$
The Answer Is:
$-9814$

Hope this helps.
-Benjamin

4 0

3 years ago

Read 2 more answers