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
Firdavs [7]
3 years ago
9

A researcher randomly selected 30 people to participate in a study to investigate which of two materials, A or B, used in the he

els of sneakers will last longer. The researcher is considering two design types for the study.
Design 1: Randomly assign 15 participants to wear sneakers with material A on their left feet and material B on their right feet. The remaining participants will wear sneakers with material B on their left feet and material A on their right feet.
Design 2: Randomly assign 15 participants to wear sneakers with material A on both feet and the remaining participants to wear sneakers with material B on both feet.
Which of the following best describes each design?
Mathematics
1 answer:
Yanka [14]3 years ago
6 0

Answer:

Design 1

Step-by-step explanation:

Design one would work better because the students get to see both materials (each on one foot) and if they do the same things each day with both feet, they can test how the material works with the activity...If that makes sense

You might be interested in
Solve each equation and check to make sure both solutions work<br> 2|5x-3|+10=4
Ede4ka [16]
If your just looking for x then x=2
7 0
4 years ago
Consider two competing firms in a declining industry that cannot support both firms profitably. Each firm has three possible cho
yaroslaw [1]

Answer:

a) attached below

b)  ( T,T )

c) The Pure-strategy Nash equilibria are : ( N,E ) and ( E,N )

d) The mixed-strategy Nash equilibrium for Firm 1 = ( 1/3 , 0, 2/3 )

while the mixed -strategy Nash equilibrium for Firm 2 = ( 1/3 , 0, 2/3 )

Step-by-step explanation:

A) write down the game in matrix form

let: E = exit at the industry immediately

     T = exit at the end of the quarter

     N = exit at the end of the next quarter

matrix is attached below

B) weakly dominated strategies is ( T,T )

C) Find the pure-strategy Nash equilibria

The Pure-strategy Nash equilibria are : ( N,E ) and ( E,N )

D ) Find the unique mixed-strategy Nash equilibrium

The mixed-strategy Nash equilibrium for Firm 1 = ( 1/3 , 0, 2/3 )

while the mixed -strategy Nash equilibrium for Firm 2 = ( 1/3 , 0, 2/3 ) since T is weakly dominated then the mixed strategy will be NE

Assume that P is the probability of firm 1 exiting immediately ( E )

and q is the probability of firm 1 staying till next term ( N ) ∴ q = 1 - P.

hence the expected utility of firm 2 choosing E = 0 while the expected utility of choosing N = 4p - 2q .

The expected utilities of E and N to firm 2 =

0 = 4p - 2q = 4p - 2 ( 1-p) = 6p -2 which means : p = 1/3 , q = 2/3

4 0
3 years ago
Will give brainly! Please help...
olga55 [171]

a) Choose Z since the σ is smallest . The smaller the σ the higher the consistency. Also we can see that the fewest day the student attendance is higher than other while the highest day is the same with others.                        (L = 130 ,H = 180)


b) Choose W since mean in W is the highest.



-

4 0
3 years ago
Hi! Is there anyone good with finding the surface area of something? If so, please comment. If you do help me, I will give you 5
Aleks [24]
No sorry 123
God bless you
7 0
3 years ago
Write an explicit formula for an, the nth term of the sequence 11, 20, 29
photoshop1234 [79]
On = 38 - 9n
Step-by-step explanation:
Note the common difference d between
consecutive terms
d= 20 - 29 = 11 - 20 = - 9
This indicates the sequence is arithmetic with n
th term
On
= apt (n - 1)d
where a, is the first term and d the common
difference
Here a, = 29 and d=- 9, thus
An = 29 - 9 (n - 1) = 29 - 9n + 9 = 38 - 9n
7 0
3 years ago
Other questions:
  • Solve for X: 5x+(-x)-1=11-2x
    10·2 answers
  • 3/p - 13 = -25 A.–45<br><br> B.–32<br><br> C.101 1\3<br><br> D.–27
    5·1 answer
  • Solve the equation <br> 3|x – 2|+2 = 17
    12·1 answer
  • How many grams are in 4.5 moles of Fe?
    8·2 answers
  • Which measure of center is needed in a box plot?
    7·1 answer
  • Test !! please help ASAP
    14·1 answer
  • Katie has to drive 15 miles east and 36 miles north to get to her aunt's house. Which of the following equations could be used t
    10·2 answers
  • Find the slope of the graph
    9·1 answer
  • Help I’m giving brainlest to the first person who get it right!!!
    8·2 answers
  • Let P(x) = 3x³-ax+b. If P(1) = P(-1) and P(2)=16, find the values of a and b
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!