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Crank
3 years ago
11

How can we use data from a randomized experiment to compare two treatments?

Mathematics
1 answer:
kondaur [170]3 years ago
3 0
<h2>Answer:</h2>

<u>We can use t-test </u><u>to compare the two treatments statistically</u>

<h2>Step-by-step explanation:</h2>

T test is used as a hypothesis testing tool, which allows testing of an assumption applicable to a population. It is usually used when the data sets such as the set of data recorded as a result from flipping a coin a 100 times will follow a normal distribution and may have unknown variances.The t-test is one of many tests used for the purpose of hypothesis testing in statistics.

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Convert the circle to standard form.<br><img src="https://tex.z-dn.net/?f=%20%7B9x%7D%5E%7B2%7D%20%20%2B%20%20%7B9y%7D%5E%7B2%7D
lara31 [8.8K]

Answer:

(x + 1)² + (y + 1)² = (√6)²

Step-by-step explanation:

Group the x- and y- terms together:

9x^2 + 18x + 9y^2 + 9y = 36

Factor out the coefficient 9:

x^2 + 2x + y^2 + y = 4

Complete the square of x^2 + 2x and then do the same for y^2 + 2y:

x^2 + 2x + 1 - 1 + y^2 + 2y + 1 - 1 = 4

Rewrite x^2 + 2x + 1 as the square of the binomial x + 1:

(x + 1)^2 + (y + 1)^2 - 2 = 4

Collect the constant terms on the right side:

(x + 1)^2 + (y + 1)^2 = 6

Rewrite 6 as (√6)^2:

(x + 1)² + (y + 1)² = (√6)² is the equation in standard form (x - h)² + (y - k)² = r²

Completing the square is done as follows:  x^2 + 2x

Start with x^2 + 2x

1.  Take half of the coefficient of x, which results in 2/2, or 1

2.  Square this result and add it to, and subtract it from x^2 + 2x

     x^2 + 2x + 1 - 1

3.  Rewrite the first three terms as the square of a binomial:  

     x^2 + 2x + 1 - 1 = (x + 1)² - 1.

Do the same for y² + 2y.

7 0
3 years ago
Solve for x In the triangle
Goryan [66]
\boxed {\boxed { \sin(\theta) = \dfrac{\text{opp}}{\text{hyp}} }}

\sin(38 \textdegree) =  \dfrac{x}{11}

x = 11 \times \sin(38 \textdegree)

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Answer:

16

Step-by-step explanation:

50-2= 48

48 divide by 2 is 16

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3 years ago
Angle BAC measures 56. What is the measure of angle BDC?
goldfiish [28.3K]

Answer: Like the angles BAC (56°) and BDC has the same arc BC in the circumference, these angles must be congruent, then angle BDC must be equal to 56°.

4 0
3 years ago
Read 2 more answers
6 less than the quotient of z divided by 3
muminat

Answer:

z/3 - 6

Step-by-step explanation:

just wrote out what the words said in math!

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