3 years ago

I need this a.s.a.p please

1 answer:

6 0

Answer:

You would multiply 38.3 time .40 which is the 40%

this would give us

=15.32

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Sphinxa [80]

Answer: (1.55, 6.45)

Step-by-step explanation:

The confidence interval for population mean is given by :-

$\overline\ {x}\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Significance level : $\alpha: 1-0.99=0.01$

Critical value : $z_{\alpha/2}=2.576$

Sample size : n=41

Sample mean : $\overline{x}=4.0\text{ kg}$

Standard deviation : $\sigma=6.1\text{ kg}$

Then, 99% confidence interval for population mean will be :_

$4\pm\ (2.576)\dfrac{6.1}{\sqrt{41}}\\\\\approx4\pm2.45\\\\=(4-2.45, 4+2.45)=(1.55, 6.45)$

8 0

3 years ago

gayaneshka [121]

Answer:

2.123.007

Step-by-step explanation:

4 0

2 years ago

loris [4]

2d – e = 7 
d + e = 5 

3d=12 

d=4

8 0

3 years ago

zalisa [80]

The point is anywhere below 0 on the Y axis

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1 year ago

Aleks [24]

Let y be x, and x be y.

x = 4y - 8

Rearrange to make y the subject.

x + 8 = 4y

Therefore

y = (x + 8) / 4

is the inverse.

4 0

2 years ago