MATHEMATICS COLLEGE

Use the given data to find the minimum sample size required to estimate a population proportion or percentage. Margin of error: seven percentage points, confidence level 95%, from a prior study,^p is estimated by the decimal equivalent of 42%n=_____ (round to the nearest integer.)

Answers

Answer 1

Answer:

Answer: 191

Step-by-step explanation:

Formula to find the minimum sample size required to estimate a population proportion or percentage:

$n= \hat{p}(1-\hat{p})((z^*)/(E))^2$

, where $\hat{p}$ = proportion estimated by prior study.

E= Margin of error.

z* = Critical z-value.

Given : Confidence level = 95%

Critical value for 95% confidence = z*=1.96

$\hat{p}=\ 42\%=0.42$

E= 7%= 0.07

Then, $n= 0.42(1-0.42)((1.96)/(0.07))^2$

$n= 0.42(0.58)(28)^2$

$n= 0.2436(784)=190.9824approx191$

Hence, the minimum sample size required=191

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Answers

Answer:

y=6x-8

Step-by-step explanation:

10-4/3-2

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y=mx+b

y=6x+b

4=6(2)+b

4=12+b

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Help! - Answer = Brainliest!

Thanks!

Answers

Answer:

Step-by-step explanation:

i copied the person above me :)

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Which function represents the graph?

Answers

Answer:

option 3

Step-by-step explanation:

We know this is a cube-root parent function due to the shape of the curve. Option C moves the graphed function from the origin (0,0) to two units to the left and one unit upward.

Last question if ya don’t mind giving me a help

Answers

1.55 ? not entirely sure

C(X)=6X+600 marginal cost

Answers

Answer: 6

Step-by-step explanation:

Derivate C(x)=6x+600

C'(x)= d/dx (6x) + d/dx (600)

C'(x)= (6) + (0)

What’s the correct answer for this?

Answers

Answer:

P=19.2 ft

Step-by-step explanation:

ACCORDING TO THE THEOREM,

BC=2(DE)

So BC =2(3.2)

BC=6.4 ft

Now

AB=2(EF)

AB=2(4)

AB=8 ft

Now

AC = 2(DF)

AC= 2(2.4)

AC=4.8 ft

Now we're gonna find the perimeter which is sum of all sides

Perimeter=4.8+8+6.4

P= 19.2 ft

Answer:

Step-by-step explanation:

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PLEASE HELP, TY! WILL MARK BRAINLIEST!