To test the effect of partial day care on academic performance in young children, you plan to use two groups of 4-year-olds from the same preschool class: one group is made up of randomly selected children who attend part-time day care; the other group includes randomly selected children who do not attend any day care other than preschool. Both groups will complete a brief test of academic performance during a regular preschool class. Which type of test should you use to compare the mean scores of the two groups

Answers

Answer 1

Answer:

Independent samples t test

Step-by-step explanation:

The experiment performed above, required the independent samples t test as it invilves two seperate and distinct, otherwise called independent groups whereby one group has no effect on the outcome of the other. The means a ND standard deviation of the first group (4 year Olds who attend part time daycare) and the other group (4 year Olds who do not attend part time daycare). Hence, the comparison can be made using the two independent samples t test ;

With possible hypothesis relation being :

H0 : μ1 = μ2

H1 : μ1 ≠ μ2


Related Questions

Please help me, I'm afraid of failing this but I don't know what it's even about

Answers

Answer:

...

Step-by-step explanation:

the coefficients are 4, 7, 4, 6

12 mols of h20 will be produced

Please answer correctly! I will mark you as Brainliest

Answers

Answer:

424.3m³

Step-by-step explanation:

I'm sorry, I don't have any proof because I used the go.ogle calculator, you're just gonna have to trust me on this one

Which measurement is equivalent to 84 inches?
A.8 feet
B. 1 yard, 2 feet, 24 inches
C. 7 feet, 4 inches
D. 4 feet, 40 inches

Answers

Answer: A

Step-by-step explanation:

Answer: B. 1 yard, 2 feet, 24 inches

Step-by-step explanation: 1 yard is 36 inches. Each feet is 12 inches, but there are 2 feet so 12 times 2 is 24 inches. And the last is just 24 inches. So, 36 + 24 + 24 = 84 inches

PLEASE HELP ASAP ANSWER THIS QUESTION AND I WILL GIVE BRAINLIEST!! NO LINKS PLS

Answers

Answer:

3. The ages of people eating in a family restaurant. The ages of people who watch football.

Step-by-step explanation:

Hope this helps<D

It creates a gap because there's a restaurant but then there's age of people who watches football.

Which expression is equivalent to: 4x - 2 + 6x
a- 10x - 2
b- 2x - 2
C- - 2x - 2
d- 24x - 2

Answers

You add the like terms which are 4x and 6x
4x + 6x= 10x

10x-2 Which is choice A

Answer:

a. 10x - 2

Step-by-step explanation:

4x - 2 +6x ( collect like terms )

4x +6x - 2

10x - 2

HELP ME PLAESE ASAPPP

Answers

area of triangle = base x height over 2
12 x 6 = 72
72 over 2 = 36
area is 36 ft^2

PLEASE HELP ME ITS DUEEE TODAYY!!!!!!!!!

Answers

height =h=16inch

Answer:

volume of cuboid =l×b×h

3840in³=20×12×h

h=3840/240=16inch

Marisol went to a hair salon for a haircut. The hair stylist cut off 3 inches of her hair. The length of her hair is now 11 inches. Let b represent the length of her hair before she went to the salon. Which of the following represents an equality between two different ways of expressing the length of Marisol's hair now?
A.b-3=11 B.b=11 C.b+3=11 D. 11b=3

Answers

Answer:

C

Step-by-step explanation:

Answer:

The answer is A

Step-by-step explanation: took it on times4learning math assignment

ANSWER ASAP WILL GIVE BRAINLIEST
in the diagram below what is the approximate length of the minor arc ab
A 31.4
B 14.3
C 7.9
D 15.7

Answers

the answer is 15.7 i did the same one

PLEASE HELP. NO LINKS. NEED REAL EXPLANATION.

Answers

Answer:

Step-by-step explanation:

This is very easy watch

x^2-16x+ __

what do we do to find the blank?

We divide 16 by 2 to get 8

then we take the square of 8

which is 64

so this would be  x^2-16x+ 64 = 64

REMEMBER 64 goes to BOTH sides of equation

A.none
B.vertical
C.Adjacent
D.Complementary
E.Obtuse

Answers

C hope that helps have a good one and stay 28 - 6973

Use point-slope form to write the equation of the line with a slope of 5/2 that goes through the point (-3,-6).

Answers

Answer:

4, (2,-4)

m= 5,(1,)

3,( 2,9)

Answer:

[tex]y+6=\frac{5}{2} (x+3)[/tex]

Step-by-step explanation:

point-slope formula: [tex]y-y_1=m(x-x_1)[/tex]

where m = slope and the point would be [tex](x_1,y_1)[/tex]

point-slope form: [tex]y+6=\frac{5}{2}(x+3)[/tex]

If you want to learn more about point-slope form,

Go to: https://www.albert.io/blog/point-slope-form/#What_is_point_slope_form

r= 26, h = 16, S = ?​

Answers

Answer:

S = 6

I think

Answer:

s=6

Step-by-step explanation:

if you are figuering it out in order then r=26 then you subtract 10 and get h=16 so then you subtract 6 more and get s=6

Match each system of equations to the inverse of its coefficient to the inverse of its coefficient matrix, A^-1, and the matrix of its solution, X.

Answers

Answer: Look st the picture below.

Step-by-step explanation: I got this right on Edmentum.

1. Determine the following:
1.1. A car does a distance of 340 km for a consistent speed of 85 km/h. Hoy
long will it take the car to go the entire distance.

Answers

Answer:

v=d/t

v=340km/85km/h

v=4 km

I hope this helps you

If x = 4, y = 3, z = -5, then evaluate: z - z + x - y

Answers

i got -15 as the answer, hope it works
Answer:

1

Explanation:

z - z + x - y

-5 - -5 + 4 - 3

-5 + 5 + 4 - 3

4 - 3

1

Solve each inequality and describe what the solutions would look like on a number line. Be sure to include: 1. Where the solution starts 2. If the circle is open or closed 3. The direction the line is shaded 9+x > -11

Answers

Answer:

[tex]x >-20[/tex]

Step-by-step explanation:

Given

[tex]9 + x >-11[/tex]

Solving (a): The solution

[tex]9 + x >-11[/tex]

Collect like terms

[tex]x >-11-9[/tex]

[tex]x >-20[/tex]

Solving (b): Illustration on a number line

Where the solution starts

It starts on -20

Open or closed circle

An open circle; because the solution shows greater than

The direction

Greater than means that, the solution is towards the right.

Hence, the direction is right

A sphere has a surface area of 803.84 cm^2. What is the volume?

Answers

Answer:

V≈2143.03cm³

Step-by-step explanation:

The volume of the sphere is 2143.57 cm³.

What is the surface area of the sphere?

A = 4 × π × r², where 'r' is the radius of the sphere.

What is the volume of the sphere?

V = (4/3) × π × r³

For given example,

a surface area of the sphere is 803.84 cm^2.

⇒ A = 803.84 cm²

Using the formula of the surface area of the sphere,

⇒ 4πr² = 803.84

⇒ r² = 64

⇒ r = 8 cm

Using the formula of the volume of the sphere,

⇒ V = (4/3) × π × r³

⇒ V = (4/3) × 3.14 × 8³

⇒ V = 2143.57 cm³

Therefore, the volume of the sphere is 2143.57 cm³.

Learn more about sphere here:

https://brainly.com/question/9994313

#SPJ2

If triangle ABC has sides of lengths 6, 10, and x + 3, between which two numbers must the value of x lie?

Answers

Answer:

Step-by-step explanation:jhbhbhjvjhvkhvmvghv

Equation of a line


Equation of a line.

⚠️IF YOU KNOW, PLEASE HELP ME THIS I HAVE TO SUBMITTED TODAY!!! ( ⚠️


Write the Equation of the line in fully simplified slope- intercept form


Answers

Answer:

y=-6/5x-2

Step-by-step explanation:

We are given points (5,-8) and (-5,4)

Slope = m = (y₂-y₁)/(x₂-x₁) = (-8-4/(5-(-5)) = -12/10 = -6/5

Y-intercept = b = (0,-2)

Final equation: y=-6/5x-2

Answer:

y=-6/5x-2

Step-by-step explanation:

y=mx+b

Its sloping downwards, so a negative slope.

two points: (-5,4) and (5,-8)

---------------------------------------------

so first find the slope.

y2-y1 / x2-x1  <= formula

so: -8-(4) / 5-(-5)

which becomes => -12/ 10

which is 6/5 the slope is 6/5

------------------------------------------

plug this into y=mx+b, where m is the slope

so: y=6/5x+b

------------------------------------------

obviously b is the y intercept, where the line meets y

the y intercept is -2

sooooooo final answer is

----------------------------------

y=6.5x+(-2)

-----------------------------------

Negative slope, so becomes y=6/5x-2


Sara spent $27 on three volleyballs. How much did each volleyball cost?

Answers

Each volleyball cost $9

find the value of b if triangles are similar

Answers

Answer:

9 because the constant of proportianlity is 3/4 and 3/4 of 12 is 9.

ME NEED HELP HERE SO CONFUSED

Answers

Answer:

106°

Step-by-step explanation:

By exterior angle theorem:

[tex]m \angle \: 1 = 62 \degree + 44 \degree \\ \\ m \angle \: 1 = 106 \degree[/tex]

Step-by-step explanation:

Let the unknown angle in the triangle be x.

x + 44 + 62 = 180(sum of angles in a triangle)

x + 106 = 180

x = 180 - 106

x = 74

Angle 1 + x = 180 (Sum of angles on the same straight line)

angle 1 + 74 = 180

Angle 1 = 180 - 74

= 106

when you are given a zero of a function and told that it has a multiplicity of 3, what does that mean?​

Answers

Answer:

the zero of a function is what value you can plug in and get 0 as the answer.

having a multiplicity of 3 means that the zero is there 3 times so if your zero is 2 with multiplicity 3 then (x-2)^3 is what it looks like

Step-by-step explanation:

i posted 2 others already plz help answer i really need this

Answers

Answer:No

Step-by-step explanation:

B. No ;):););):);););):p

In the year 2000, the population of Virginia was about 7,400,000.
Between the years 2000 and 2004, the population in Virginia grew
at a rate of 5.4%. At this growth rate, the function f(x) = 7,400,000 (1.054)*
gives the population x years after 2000.
9. In what year will the population reach 15,000,000?
10. In what year will the population reach 20,000,000?

Answers

Answer:

Step-by-step explanation: 7,400,000/5.4%=13,703.7

grows by 13,703.7 every 4 years

7+7

6(10+z+3) whats the answer i need help and also when someone texts you lol what would you say

Answers

6(10+z+3)
= (6)(10 + z +3)
= (6)(10) + (6)(x) + (6)(3)
= 60 + 6x + 18
= 6x + 78

Marty's class collected $10.00 in a school-wide penny collection contest. If Tommy's class subtracted $4.00 from the amount they collected, x, and then multiplied the difference by 2, they would have the same amount of money as Marty's class.



How much money did Tommy's class collect?
A.
$9.00
B.
$13.00
C.
$4.00
D.
$17.00

Answers

C I thing I am not 100% sure let me know

Find the Volume if the height is 10 cm and radius 3 cm? Round to the nearest
whole number

Answers

[tex]282.8cm pa brainlest po[/tex]

Odredi sve cijele brojeve z sa svojstvom [z]=3​

Answers

Answer:

yes

The equation is correct :)

Step-by-step explanation:

What’s ur question ? Lol
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