1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olga2289 [7]
2 years ago
6

In a study, subjects are randomly assigned to one of three groups: control, experimental A, or experimental B. After treatment,

the mean scores for the three groups are compared. The appropriate statistical test for comparing these means is:
Mathematics
1 answer:
Pepsi [2]2 years ago
4 0

Answer:

Analysis of variance

Step-by-step explanation:

The appropriate statistical tool for this is the analysis of variance. The analysis of variance, also known as the ANOVA, is a statistical method which has the ability to separate data from observed variance into various components which is then use for more tests.

The anova gives an analysis of the differences that are in the group means of a sample.

You might be interested in
Enya is building a storage cupboard in the shape of a rectangular prism. The rectangular prism has a square base with side lengt
grin007 [14]
What do you think is the first step

4 0
2 years ago
Find the range of (f+g)(x) when f(x) = (x+4)^2 and g(x) = 3
qwelly [4]

(f+g)(x)=f(x)+g(x)\\\\f(x)=(x+4)^2;\ g(x)=3\\\\(f+g)(x)=(x+4)^2+3=(x)^2+2(x)(4)+4^2+3\\\\=x^2+8x+16+3=x^2+8x+19\\\\Used:\\\\(a+b)^2=a^2+2ab+b^2

7 0
2 years ago
F(x)=2x² + 12, what is f(3)<br><br> 3<br> 12<br> 18<br> 30
Natali [406]
The answer to the question

8 0
2 years ago
Earth is approximately 9.3 × 107 miles from the sun. Saturn is approximately 8.87 × 108 miles from the sun. About how much farth
Lostsunrise [7]
First you get both distances
9.3 x 107 = 995.1 miles
8.87 x 108 = 957.96 miles
then you subtract them both
995.1 - 957.96 = 37.14 miles
and 37.14 miles is the distance between Earth and Saturn.
5 0
3 years ago
Find the Value of the letter in the following questions. Give your answers to 3 s.f.
Elis [28]

Answer:

i = 75.7°

h = 48.2°

Step-by-step explanation:

==>To find i, use the sine rule for finding angles: sin(A)/a = sin(B)/b

Where,

a = 7.2cm

sin(A) = i

b = 6.5cm

sin(B) = sin(61) = 0.8746

Thus:

sin(A)/7.2 = 0.8746/6.5

Multiply both sides by 7.2

sin(A) = (0.8746*7.2)/6.5

sin(A) = 0.969 (3 s.f)

A = i° = sin^-1(0.969) = 75.7 (3 s.f)

==>To find h, use the Cosine rule for angles:

Cos(C) = (a²+b²-c²)/2ab

cos(C) = h°, a = 4, b = 4.5, c = 3.5

a² = 16

b² = 20.25

c² = 12.25

cos(C) = (16+20.25-12.25)/(2*4*4.5)

cos(C) = 24/36

cos(C) = 0.667 (3 s.f)

C = h° = cos^-1(0.667) = 48.2° (3 s.f)

4 0
2 years ago
Other questions:
  • Please answer this correctly
    11·2 answers
  • a 120 degree sector of a circle has an area of 67 square centimeters. to the nearest centimeter, what is the diameter of the cir
    13·1 answer
  • Which is the graph of x≤2
    11·1 answer
  • You chose a college loan plan that is compounded annually. You take out $10,000 on the loan, and it has an interest rate of 5.75
    7·1 answer
  • Find the ratio between a:b for each problem
    12·1 answer
  • PLEASE HELP
    12·2 answers
  • Which is a perfect square?
    11·2 answers
  • Lesson 24
    6·1 answer
  • Pls help ASAP I will give you as many points as you need
    5·2 answers
  • 20 4/8 + 19 7/9 + 15 3/36 =<br> also show how you got the answer
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!