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My name is Ann [436]
2 years ago
12

27. To compare the effectiveness of two treatments, researchers conducted a well-designed experiment using a

Mathematics
1 answer:
Firlakuza [10]2 years ago
8 0

In a randomized block design, it is expected treatments are randomly assigned within each block.

<h3>What does a randomized block design imply?</h3>
  • Subjects are divided into blocks based on a specific features such as age, gender, education, etc.
  • Within each block subjects that receive treatment and does who do not are randomly assigned.
  • The treatment in all blocks is the same. For example, if the purpose is to study the effect of medicine all treatment subjects should receive the same medicine and dose.

<h3>What is the purpose of this design?</h3>

The purpose is to minimize the effect of certain factors such as age.

Based on the above, it is expected in this experiment the treatment is randomly assigned to a specific number of subjects within each block.

Learn more about experiment in: brainly.com/question/11256472

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Using synthetic division, what is the quotient (2x3 − 3x − 10) ÷ (x − 2)?
melamori03 [73]

Answer:

(2x3 − 3x − 10) ÷ (x − 2) = ( x-2)

Step-by-step explanation:

4 0
2 years ago
What expression is equivalent to -2x + 7
NARA [144]
I think that’s the answer

3 0
3 years ago
The price p, in dollars, of a specific ca that is x year old is modeled by the function p(x)=22,255(0.91)^x
uysha [10]

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

The price p, in dollars, of a specific car that is x year old is modeled by the function p(x)=22,255(0.91)^x

a) to determine the cost of a 2 year old car, we will substitute 2 for x in the given function. Therefore

p(2)=22,255(0.91)^2

p(2)=22,255 × 0.8281 = $18673.655

Approximately $18674

b) to determine the cost of a 7 year old car, we will substitute 7 for x in the given function. Therefore

p(7)=22,255(0.91)^7

p(2)=22,255 × 0.51676101936 = 11500.51648579693

Approximately $11501

c) 0.91 indicates exponential decay rate. It is a fixed percentage by which the value of the car decreases every year. It is determined by (1 - rate of decay)

7 0
3 years ago
A zoo is keeping track of the weight of a baby elephant.the table shows the weight for the first, second, third, and fourth week
True [87]

Hello!

I would say the second option, because it looks like the most reasonable one.  The third and fourth options decrease, but we can see by the chart that in fact, the weight increases. Also, it wouldn't be the first option, because its showing that the wight is always constant and rate doesn't change. However, we can see that this is wrong and the rate actually does change.  Therefore, the second option looks like the most reasonable for this chart.

Hope this helps!

5 0
3 years ago
Read 2 more answers
18 is what percent of 20?
velikii [3]

divide it

18/20 = 0.9

18 is 90% of 20

5 0
4 years ago
Read 2 more answers
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