The researcher should use an independent samples t-test to test the data.
What statistical test should the researcher use to analyze the data?An independent samples t-test is appropriate when comparing the means of two independent groups or conditions.
In this case, the researcher has a group of rats that received the serotonin treatment and another group that received a placebo treatment. These groups are independent of each other because the rats in one group do not affect or interact with the rats in the other group.The t-test will allow the researcher to determine if there is a significant difference between the means of the two groups.Indicating whether the serotonin treatment had an effect on the aggression levels compared to the placebo.An independent samples t-test compares the means of two independent groups, considering sample sizes, standard deviations, and potentially assuming equal or unequal variances. It provides a p-value indicating the probability of observing the observed mean difference if there were no true difference between the populations. A p-value below the significance level (e.g., 0.05) suggests a significant difference between the groups.Therefore, independent samples t-test is used to compare the effects of two different treatments on two separate groups.
Learn more about design and statistical analysis
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The school band has a goal of raising $800 for some new uniforms. If they
have raised $512 so far, what percent of their goal have they raised?
help please (;´༎ຶٹ༎ຶ`)
Answer:
64%
Step-by-step explanation:
512/800=.64
Answer: The exact answer is 62.5 but rounded its 63.
Which of the following correctly shows the Pythagorean theorem?
Answer:
a²+b²=c²
Step-by-step explanation:
that is the formula for calculating pythagoras
Find The Area of the parallelogram...Explain.
Answer:
8x17=136, so the area is 136 inches squared.
Step-by-step explanation:
In triangle Xyz the measure of angle YXZ is 14.5°, and the measure of angle XYZ is 75°. What is the measure of angle XZY in degrees
Answer:
90.5 degrees
Step-by-step explanation:
The sum of the angle in triangle XYZ is 180 degrees, hence;
m<XYZ + m<YXZ + <XZY = 180
Substitute the given angles
75 + 14.5 + <XZY = 180
89.5+m<XZY = 180
m<XZY = 180 - 89.5
m<XZY = 90.5 degrees
Hence the measure of angle XZY in degrees is 90.5 degrees
plzzzzzzz help quick i have 10 mins left!!!
Isaac is making sandwiches for a group of friends. He needs 3 ounces of meat for each sandwich.
Part A: Isaac is not sure how many sandwiches he will be able to make. Write an expression with a variable that represents the amount of meat Isaac needs for his sandwiches. Identify what the variable represents.
Part B: If Isaac has 18 ounces of meat, how many sandwiches can he make? Create an equation and show all work to solve it.
Answer:
A)
O = 3S
While O is the number of ounces of meat
While S is the number of sandwiches
B)
S= O/3 = 18/3 = 6 Sandwiches
Hellppp!! please help me find the answer
Answer:
A
Step-by-step explanation:
As
Option b- is false as the top speed is 18
Option c - is false as there lesser than 17 roadrunners
Option d- is false as everything is above 12
Option a- is true as 14 is like the average ...
I hope im right!
X^2+10x+22=13 1. Rewrite the equation by completing the square your equation should look like (x+c)^2 = d or (x-c)^2=d 2. What was the solution to the equation?
Answer:
(x+5)² = 16
Solution: -1 and -9
Step-by-step explanation:
Given the quadratic equation X^2+10x+22=13
Subtract 22 from both sides
X^2+10x+22-22=13-22
x^2+10x = -9
Complete the square
Add the square of half of coefficient of x to both sides
coefficient of x = 10
half of coefficient of x = 10/2 = 5
square of half of coefficient of x= 5² = 25
Add 25 to both sides
x²+10x + 25 = -9+25
(x+5)² = 16
Hence the required equation is (x+5)² = 16
(x+5)² = 16
square root both sides
√(x+5)² = √16
x+5 = √16
x +5 = ±4
x = +4 - 5 and -4-5
x = -1 and -9
Hence the solution to the equation is -1 and -9
Evaluate the following algebraic expression, if (x = 5, y = 3)
x² +9y - 5
Answer: 47
Step-by-step explanation:
simply substitute the constants with 5 and 3.
(5)^2 + 9(3) - 5 = 47
PLS HELP QUICK !!!!!
what is the area of this figure?
Answer:
400 in²
Step-by-step explanation:
Consider the figure as a triangle on top of a parallelogram. The tic marks on the sides mean that the lengths with the same tic marks are equal.
The area of the parallelogram is 20×16=320
The area of the triangle is (20×8)/2= 80
Add the two areas: 320 + 80 = 400
i dont know how to do this I tried so many times and got it wrong please help if you can
Answer:
14
Step-by-step explanation:
Answer:
I don't see the paper so how can i help u
Step-by-step explanation:
If f(x) = x + 1, and g(x) = 2x,
then
gf(x)) = ?
Answer:
Step-by-step explanation:
If f(x)=x+1 and g(x)=2x then
g(f(x))=2(x+1)
g(f(x))=2x+2
20 = x/4 - 13 help plz thank you
Answer: x = 132 daw
Step-by-step explanation: believe me
pls subtract the first polynomial from the first one
(42m^(4)+21m^(2))+10) (-8m^(4)-12m^(3)-15m^(2)+9)
Answer:
34m^4+21m^3+6^2+19
Step-by-step explanation:
since there are no signs in between the bracket you just have to remove it a subtract and add like terms.
Rewrite the formula to find the width of the base of the prism if the volume, length of the base, and height of the prism are already known.
Answer:
w = V/lh
Step-by-step explanation:
The volume of a rectangular prism is calculated using the formula V = lwh, where V is the volume of the prism, l and w are the length and width of the base of the prism, respectively, and h is the height of the prism.
Rewrite the formula to find the width of the base of the prism if the volume, length of the base, and height of the prism are already known.
volume of a rectangular prism,V = lwh
Where,
l = length of the base of the prism
w = width of the base of the prism
h = height of the prism
Rewrite the formula to find w
V = lwh
w = V/lh
That is,
width of the base of the prism = volume of the prism divided by length of the base of the prism multiplied by height of the prism
A line with a slope of 2 passes through the point (2,4). what is its equation in slope-intercept form?
Answer:
y = 2x + 0
Step-by-step explanation:
IsMepawsxD1234567890abcdef
IsMepawsxD1234567890abcdef
ITS FOR A TESTT I NEED THE ANSWER
Answer:
I believe the answer is $1.52. hope this helps
help me pls im desperatew :p
Answer:
E)
Step-by-step explanation:
Because its gonna be a negative number and while using letters you should not use negative numbers you should use positive numbers or decimals
:) good luck
Which pair of angles is congruent?
Answer:
Option 2
Step-by-step explanation:
Corresponding Angles Theorem
PLEASE HELP !! GEOMETRY
Step-by-step explanation:
if you want all the questions make this brainlist answer
thank you
Which is the decimal equivalent of 2/3
A. 0.23
OB. 0.32
O c. 0.3
O
D. 0.6
Rose and Carl share a 24-ounce bucket of clay. By the end of the week, Rose has used 3 8 of the bucket, and Carl has used 1 4 of the bucket of clay. How many ounces are left in the bucket?
Answer:Quantity of Clay left = 9ounce
Step-by-step explanation:
Quantity of clay in the bucket = 24 ounce
Quantity of clay used by rose=3/8 of 24 ounce = 4 x 3 = 9 ounce
Quantity of clay used by Carl= 1/4 of 24 ounce = 6 ounce
Therefore Quantity of Clay left = Quantity of clay in the bucket - (Quantity of clay used by rose+ Quantity of clay used by Carl
24 ounce - ( 9ounce + 6 ounce )
24-15ounce
= 9 ounce
Which of the following describes the transformation from Figure 1
1
to Figure 2
2
?
5 units to the right and 3 units down
Write your answer as a decimal or whole number % of 80 =60
Step-by-step explanation:
number = 15/2 or 7.5
plz mark my answer as brainlist plzzzz.
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What is the value of the 8th term of the sequence 4, 8, 16, 32, ...?
128
2,048
512
1,024
Answer:
512
Step-by-step explanation:
Sin (61) = 24/ x
find x plz show work
Answer:
x=27.44
Step-by-step explanation:
sin(61)=24/x
x*sin(61)=24
x=24/sin(61)
x=27.44
PLEASE HELP I'M SOO CONFUSED AND IT'S DUE TODAY!!!!!!!!!!!!!...I HAVE A LOT OF WORK TO DO TODAY AND I JUST NEED HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
Answer:
2 Triangles with the bilateral of the sun to the 2nd power of pie
Step-by-step explanation:
I took the test ;)
What are the restrictions for y for the following equation? X=10/5+y
Answer:
y = -5
Step-by-step explanation:
The restriction for the value of y is the value of the variable that will make the function undefined
The function is undefined when the denominator is zero i.e when 5 + y is zero
5+y = 0
y = 0-5
y = -5
Hence the restrictions is at when y = -5
Mark is having his driveway paved. A diagram of his driveway is shown below. If the company he is using charges $3.50 per square foot, how much will he pay
Answer:
He will have to pay $1412.25
Step-by-step explanation:
When you break down the area of the driveway, then add the areas of the different shapes it comes to have an area of 403.5. Multiply the area by the cost per square foot