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s344n2d4d5 [400]
3 years ago
6

A researcher calculated sample proportions from two independent random samples. Assuming all conditions for inference are met, w

hich of the following is the best method for the researcher to use to estimate the true difference between the population proportions?
Mathematics
1 answer:
WARRIOR [948]3 years ago
7 0

Answer:

A) Construct a two-sample  z -interval for the difference between population proportions.

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( 10x-20) (6x + 8) what is the value of x
NNADVOKAT [17]
(10x-20)=(6x+8)

We simplify the equation to the form, which is simple to understand
(10x-20)=(6x+8)

Remove unnecessary parentheses
10x-20=(6x+8)

Remove unnecessary parentheses
10x-20=6x+8

We move all terms containing x to the left and all other terms to the right.
+10x-6x=+8+20

We simplify left and right side of the equation.
+4x=+28

We divide both sides of the equation by 4 to get x.
x=7
3 0
3 years ago
marianne buys 16 bags of potting soil that comes in 5/8 lb. bags. how many pounds of potting soil foes she has.
andriy [413]
One bag of soil is 5/8 pounds.
you have 16 of them.
just multiply 16 by 5/8.
you could just type it into your calculator, or you could do it the long way:
16 *  \frac{5}{8} \\ \frac{16*5}{8} \\  \frac{8*2*5}{8} \\ 2*5\\10

she has 10 pounds of potting soil.
8 0
4 years ago
Leslie joins a fitness club that has a
agasfer [191]

Answer:

4

Step-by-step explanation:

15x+20 = 40 +10x

x = 4

6 0
3 years ago
I need this to be explained and have the answer thanks I AM BEGGING YOU!!!!!!!!!!!!
Firdavs [7]

Answer:

  Store A has a better deal because $402.90 is less than $404.10.

Step-by-step explanation:

<u>Store A</u>

The $25 off coupon reduces the price to ...

  $499 - 25 = $474

The discount from this amount is 15%, so is ...

  $474 × 0.15 = $71.10

The final amount paid is then ...

  $474.00 -71.10 = $402.90

(<em>Side note</em>: you can select the correct answer at this point, because only one answer shows this value.)

___

<u>Store B</u>

After the $20 off coupon, the price is ...

  $469 -20 = $449

The additional 10% discount amounts to ...

  $449 × 0.10 = $44.90

So, the final price is ...

  $449.00 -44.90 = $404.10

___

Now, you know that Store A offers the better price because $402.90 is less than $404.10.

6 0
3 years ago
Students in an art class make square tiles that are 5 inches long.They plan to make a row of tiles that is 4 feet 2 inches long.
Nataliya [291]

4 feet is 48 inches.

So 4'2" would be 50 inches.

50/5=10

The class needs to make 10 tiles.

4 0
3 years ago
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