1. A psychologist was interested in the effect of Vitamin A deficiency on maze learning rats. A group of nine rats learned a simple maze. Next, these same rats were deprived of Vitamin A for six weeks and were then tested again on their ability to learn a second maze equal in difficulty to the first. The scores represent the number of maze errors made under the two treatment conditions. Perform an appropriate two-tailed test of the significance of the mean difference.
Answers
Answer: hello your question has some missing information attached below is the missing information
we fail to reject H0 hence μ1 = μ2mean difference ( d ) = -2.444Step-by-step explanation:
H0 : μ1 = μ2
Ha : μ1 ≠ μ2
where : μ1 = mean number of errors made in pretest
μ2 = mean number of errors made in post test
n = 9
attached below is the detailed solution
Related Questions
Solve.
x2=14425
Express your answer as a fraction, using± if necessary.
Enter your answer in the box.
Answers
Answer:
x is 120.104121495
Step-by-step explanation:
because you can square out the equation and get x
Answer:
The first one should be right but if you’re from K12 then it’ll be 12/5, and just that again except had a negative.
Step-by-step explanation:
which expression is equivalent to (6 •p) + 3 ?
Answers
Answer:
3+(p.6)
Step-by-step explanation:
Answer:
3 + (p • 6)
Step-by-step explanation:
2. How does the graph of the following function compare to the quadratic parent function? * (1 Point) 8 (x) = x2 + 5 Moves up 5 Moves down 5 Moves to the left 5 Moves to the right 5
Answers
Answer:
b
Step-by-step explanation:
oi did the quiz f. 6373737
Which equation represents a circle with a center at -3, -5) and a radius of 6 units?
O (x - 3)2 + (-5)2 = 6
0 (x - 3)2 + (-5)2 = 36
O (x + 3)2 + (y + 5)2 = 6
(x + 3)2 + (y + 5)2 = 36
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Answers
Answer:
(x+3)²+(y+5)² = 36
Step-by-step explanation:
The general equation of a circle is expressed as;
(x-a)²+(y-b)² = r² where;
(a, b) is the centre of the circle
r is the radius of the circle
Given
Centre (-3, -5)
a = -3 and b = -5
radius r = 6units
Substitute
(x-a)²+(y-b)² = r²
(x-(-3))²+(y-(-5))² = 6²
(x+3)²+(y+5)² = 36
hence the required equation is (x+3)²+(y+5)² = 36
The equation of a circle that represents a circle with a center at (-3, -5) and a radius of 6 unit is (x + 3)² + (y + 5)² = 36
Equation of a circleThe general equation of a circle is expressed as follows:
(x-a)²+(y-b)² = r²
where
r = radius of the circlea and b are the centre of the circleTherefore,
a = -3
b = -5
r = 6
Hence,
(x - (-3))² + (y - (-5))² = 6²
(x + 3)² + (y + 5)² = 36
learn more on circle here: https://brainly.com/question/22718701
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PLEASE HELP ASAP ILL AWARD BRAINIEST
Answers
Answer:
Сен қазақ сыңба?
Step-by-step explanation:
қазашшаайтшыааа
Determine the value of variables a, b, and c that make each equation true.
What is the value of a in this equation?
1
(14496
30
a
What is the value of b in this equation?
b=
What is the value of c in this equation?
(x2)° = 222
Answers
Answer:
77
Step-by-step explanation:
I got it right on my question
Factor the Expression= -3x + 12
Answers
Answer:
-3(x-4)
Step-by-step explanation:
to factor, you have to find the gcf of both numbers. the gcf is -3
Answer:
-3 (x-4)
Step-by-step explanation:
Take a negative three out of each part of the problem.
Last season the girls' volleyball team had 5 seventh-grade students and 4 sixth-grade students. What is the ratio of sixth-grade students to seventh-grade students on the volleyball team? A 4:5 B 4:9 C 5:4 D5:9
Answers
Answer:
A) 4:5
Step-by-step explanation:
A) 4:5
B) 4:9
C) 5:4
D) 5:9
If there are 4 sixth grade students, you can already cross off D because there is no 4 as an option. There are 5 seventh grade students, you can cross off B because there's no 5. So now it's down to 4:5 or 5:4. Since it wants the ration of sixth to seventh, it's 4 to 5.
Hence, the ratio is 4:5, answer A
Hope this helps :)
Stay Cold,
Brook
when loaded with iron rods a lorry has mass of 12000kg. if the mass of iron rods is there times that of the empty lorry . find the mass or iron.
Answers
Complete Question
When loaded with iron rods a lorry has mass of 12000kg. if the mass of iron rods is three times that of the empty lorry, find the mass of iron.
Answer:
3000kg
Step-by-step explanation:
Let us represent
Mass of lorry = x
Mass of iron rods = y
x + y = 12000kg..... Equation 1
x = 12000kg - y
We are told that:
If the mass of iron rods is three times that of the empty lorry, find the mass of iron.
x = 3y
We substitute 3y for x in Equation 1
x = 12000kg - y
3y = 12000kg - y
Collect like terms
3y + y = 12000kg
4y = 12000kg
Divide both sides by 4
y = 12000kg/4
y = 3000kg
Note that:
Mass of iron rods = y
Hence, Mass of iron rods = 3000kg
Will mark brainliest !!!
Answers
Answer:
27
Step-by-step explanation:
Length * width * height to find the volume so it is 3*3*3=27
3 by 3 by 3 means that the volume is 27 cubic centimeters
3 cm for width, 3 cm for height, 3 cm for length
Solve the proportion
17/4 = y/6
Answers
Answer:
This is your answer ☺️☺️
The box plots compare the weekly earnings of two groups of salespeople from different clothing stores. Find and compare the IQRs of the box plots. Group A IQR = $ . Group B IQR = $ . Group A's IQR is Group B's IQR, so the salaries in the middle 50% for Group A are spread out as those for Group B.
Answers
Answer:
Group A, IQR = 700
GROUP B, IQR =.450
Group A's IQR is greater
The values in the middle 50%.of Group A are more spread out Than those of Group B.
Step-by-step explanation:
Data for.each group :
The IQR = Q3 - Q1
From the boxplot :
Group A:
Q1 = 1100 ; Q3 = 1800
IQR = 1800 - 1100 = 700
Group B:
Q1 = 1400; Q3 = 1850
IQR = 1850 - 1400 = 450
Greater IQR = Group A
The values in the middle 50%.of Group A are more spread out Than those of Group B.
The curb weight of a new car is 3,347 pounds. How much does the car weigh?
Answers
Answer: 3,347 pounds
Step-by-step explanation:
Curb weight is simply the weight of a car with no passengers, cargo, or anyting other than the standard base model options.
Basically it's the weight of a base model car sitting on the dealership lot. Curb weight would be different if ANYTHING is added to the base model car such as a passenger, any cargo, or any upgrades aftermarket or otherwise.
Answer:
Not sure if this the correct type of way your looking but its between 1 and 2 tons which is 1000
Step-by-step explanation:
I think...
What’s the answer plzzzzzzzz?
Answers
Step-by-step explanation:
please forgive me if I have done something wrong there I am in a hurry I have to go ccooking. if there's something wrong there you can tell me I check it out when I come back good luck.
Answer:
1. 4310.3
2.1809.6
3. 2414.7
4. 230.9
5. 767.8
6. 70.3
7.1143.4
8.125.7
9. 1382.0
10. 158.5
Step-by-step explanation:
A smartphone regularly sells for $125. It is on sale this week for $85. The sale
price is what percent of the regular price?
Answers
Answer:
68%
Step-by-step explanation:
85 divided by 125 = .68 * 100 = 68
Answer: The sale price is 40 percent of the regular price
Step-by-step explanation:
The scatter plot shows the amount of time Adam spent studying and his test scores, Predict Adam's test score when he studies for 6 hours
100
90
80
Test Score
70
O.
60
0
0 1 2 3 4 5
Time Studying (hours)
When he studies for 6 hours, Adam should score about
Answers
Answer:
I think 100
Step-by-step explanation:
Statements apply to the expression 8^3 ?check all that apply
Answers
Answer: So, 8%3 = 2
Step-by-step explanation:
what value of x makes the equation -2/3x + 3 1/3x - 1/2 = -1/3x + 5 1/2 true?
A) 2
B) 1/2
C) -2
D) -1/2
Answers
Answer:
2
Step-by-step explanation:
Explanation on how to solve these problems (not answers to the problems).
Answers
Answer:
..
Step-by-step explanation:
First, you need to make sure that you know a few things.
1. A line is 180 degrees
2. Angles with the small boxes on them are right angles.
3. Angles that are across from each other are the same amount of degrees...
For example, look at angle 2, you can see that directly across from it is the angle 35 degrees, this makes angle 2 35 degrees as well.
In order to find angle 1, you need to subtract 35 from 180, to see how much is needed to fill the line, in this case it is 145.
So, angle 1 is 145 degrees, and angle two is 35.
One more thing, angles 1 and 7 are the same and so are 2 and 6 because they are on the same line, I can't remember why, but they are.
A trainee in a computer company takes 0.9 times as long to assemble each computer as
he took to assemble the preceding computer. If it took him 30 minutes to assemble the
first computer, find the total time he takes to assemble the first five computers (round to
the nearest minute)
221,430 minutes
123 minutes
122 minutes
103 minutes
Answers
The total time he takes to assemble is 123 minutes.
What is Unitary method?
The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
for second, 30*0.9=27
for third, 27*0.9 = 24.3
Similarly for the fifth computer,
=21.87*0.9
=19.68 minutes
Total time taken,
=30+ 27 +24.3+21.87+19.68
=122.553
=123 minutes.
Learn more about unitary method here:
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Equation in slope intercept form that represents their shown
Answers
Answer:
I think the answer would be Y= -2X+5 .
Hope it helps u ^^♥️
How many 1/4 cup serving are in a 6 cup container
Answers
Answer:
24
Step-by-step explanation:
6 ÷ 1/4 = 6 × 4 = 24
Answer:
24
Step-by-step explanation:
A Ferris wheel has a radius of 65 feet. What is the circumference of the wheel? (This is the distance each passenger will travel in one complete revolution.)
Group of answer choices
408.2 ft
204.1 ft
102.05 ft
304.6 ft
Answers
11. The ages (in years) of 11 children and the number of words in their vocabulary. Find the correlation coefficient r.
Age, x
1
2
3
4
5
6
3
5
2
4
6
Vocabulary size, y
3
220
540
1100
2100
2600
730
2200
260
1200
2500
Answers
Help Please! Find The Circumference Of A Circle With R=12.3.
Answers
Answer:
77.28
Step-by-step explanation:
c=π2r
12.3 times 2 =
24.6π
=77.28317928
=77.28
Answer:
77.3
Step-by-step explanation:
A bag contains 12 yellow tiles and 12 blue tiles. A student will choose one tile from the bag without looking. Which word(s) describe the probability of choosing a blue tile from the bag? likely O certain O impossible O equally likely
on a k12 quiz btw
Answers
Answer:
Equally Likely
Which of the following equations? (picture included)
Answers
Answer:
B
Step-by-step explanation:
WILL GIVE BRAINLIEST identify the domain of the function
Answers
Answer: The horizontal extent of the graph is -3 to 1, so the domain of f is (-3,1]
Step-by-step explanation:
The range is [-4,0]
B.
The number of flowers in Lito's garden is represented as follows.
Gumamela
Orchid
Answers
Answer:
5 :12 ; what is the ratio of the number of gumamela to the total number of flowers
5 : 7 ; what is the ratio of the number of gumamela to the number of orchids
7:5 ; what is the ratio of the number of orchids to the number of gumamela
12 : 5 ; what is the ratio of the total number of flowers to the number of gumamela
12 : 7 ; what is the ratio of the total number of flowers to the number of orchid
Step-by-step explanation:
Ratios of a to b ;is written as a : b
Ratio of b to a is written as b : a
The ratio of a to the sum of a and b equals ;
a : (a + b)
Number of orchids = 7
Number of gumamela = 5
Total number of flowers = 7 + 5 = 12
Ratio two quantities are compared. A number of times a number contains another. It makes value comparisons. When two components of the same unit are compared, it is possible to determine how much of one number is represented in the other. The quotient of two mathematical equations is shown.
5:12 And what's the proportion from gumamela the total flowers in the garden?7:12 And what's the proportion of orchids in the field to the total number of flowers?5:7 And what's the number of gumamela to orchids ratio?7:5 And what's the orchid-to-gumamela ratio?12:12 What is the proportion of gumamela or orchids in the field to the overall flowers?Learn more:
brainly.com/question/22730473
Two angles are supplementary. One angle measures 132 degrees. Find the measure of the other angle.
Answers
Answer:
48 degrees
Step-by-step explanation:
Supplementary angles add up to 180 degrees.
If one angle is 132 degrees, the other must be 48 degrees.