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3 years ago

While you are drawing with the compass the cursor comes out of the circle on the top of the compass what should you do

Mathematics

1 answer:

VikaD [51]3 years ago

6 0

Try to angle it out straight

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Based on historical data, your manager believes that 26% of the company's orders come from first-time customers. A random sample

scoundrel [369]

Answer:

$\hat p \sim N( p, \sqrt{\frac{p (1-p)}{n}})$

And we can use the z score formula given by:

$z = \frac{\hat p -\mu_p}{\sigma_p}$

And if we find the parameters we got:

$\mu_p = 0.26$

$\sigma_p = \sqrt{\frac{0.26(1-0.26)}{158}} = 0.0349$

And we can find the z score for the value of 0.4 and we got:

$z = \frac{0.4-0.26}{0.0349}= 4.0119$

And we can find this probability:

$P(z>4.0119) = 1-P(z$

And if we use the normal standard table or excel we got:

$P(z>4.0119) = 1-P(z$

Step-by-step explanation:

For this case we have the following info given:

$p = 0.26$ represent the proportion of the company's orders come from first-time customers

$n=158$ represent the sample size

And we want to find the following probability:

$p(\hat p >0.4)$

And we can use the normal approximation since we have the following two conditions:

1) np = 158*0.26 = 41.08>10

2) n(1-p) = 158*(1-0.26) = 116.92>10

And for this case the distribution for the sample proportion is given by:

$\hat p \sim N( p, \sqrt{\frac{p (1-p)}{n}})$

And we can use the z score formula given by:

$z = \frac{\hat p -\mu_p}{\sigma_p}$

And if we find the parameters we got:

$\mu_p = 0.26$

$\sigma_p = \sqrt{\frac{0.26(1-0.26)}{158}} = 0.0349$

And we can find the z score for the value of 0.4 and we got:

$z = \frac{0.4-0.26}{0.0349}= 4.0119$

And we can find this probability:

$P(z>4.0119) = 1-P(z$

And if we use the normal standard table or excel we got:

$P(z>4.0119) = 1-P(z$

8 0

3 years ago

10(x-2)=-2(4/3+7x)<br> help please

N76 [4]

Answer:

13/18 is the correct answer to 10(x-2)=-2(4/3+7x)

Step-by-step explanation:

Hope this helps!!!

4 0

2 years ago

Find the total price of a $14.00 shirt including the 7% sales tax

Yuliya22 [10]

14×7%=.98 so then add the .98 to the 14 to get $14.98 if you don't have a percent sign on a calculator use .07 instead of 7% ( you will get same answer)

7 0

3 years ago

What is the value of -3|15 -s|+2s^3 when s=-3

gayaneshka [121]

$-3|15-s|+2s^3\\\\\text{substitute the value of s = -3 to the expression}\\\\-3\cdot|15-(-3)|+2\cdot(-3)^3=-3\cdot|15+3|+2\cdot(-27)=-3\cdot|18|-54\\\\=-3\cdot18-54=54-54=0$

3 0

3 years ago

Please help I don’t want to fail!!

Gnesinka [82]

I can’t see the screen

5 0

3 years ago