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
leonid [27]
3 years ago
15

A psychologist investigates the effect of instructions on the time required to solve a puzzle. 20 subjects are given the same pu

zzle and are randomly assigned to receive two different sets of instructions prior to the task. One group is told that the task is difficult and the other group is told that the task is easy. What test should be used to see if there are differences between the two groups with regards to the time it takes to solve the puzzle?
a. Z-Test
b. T-Test for One Sample
c. T-Test for Independent Samples
d. One Variable Chi Square
e. One-Way ANOVA
Mathematics
1 answer:
Lerok [7]3 years ago
8 0
B. t- test for one sample

hehehehehehhee
You might be interested in
Select all expressions that are equivalent to 4x+2(2x-5)-(3-5x)
Arada [10]

For this case we have the following expression:

4x + 2 (2x-5) - (3-5x)

Applying distributive property to the terms within parentheses taking into account that:

- * + = -\\- * - = +

We have:

4x + 4x-10-3 + 5x =

We add similar terms taking into account that:

Equal signs are added and the same sign is placed.

4x + 4x + 5x-10-3 =\\13x-13

Thus, an equivalent expression is:

13x-13

Answer:

13x-13

4 0
3 years ago
Dirk plants 12 seedlings in 8 min.
Slav-nsk [51]
The answer would be b 105
8 0
3 years ago
Read 2 more answers
Dada la inecuación 5x - 2 ≥ 18, calcule el valor mínimo de x, realice el procedimiento.
blondinia [14]

Queremos encontrar el valor mínimo de x que es una solución para la inecación dada, veremos que es x = 4

<h3>Trabajando con inecuaciones.</h3>

Lo primero que debemos hacer es aislar la variable x en un lado de la inecuación, partimos de:

5x - 2 ≥ 18

Sumamos 2 en ambos lados:

5x -2 + 2 ≥ 18 + 2 = 20

5x ≥ 20

Ahora dividimos ambos lados por 5:

5x/5 ≥ 20/5

x ≥ 4

Esto significa que x es mayor o igual a 4, de aqui podemos concluir que el valor mínimo que puede tomar la variable es x = 4.

Sí quieres aprender más sobre inecuaciones puedes leer:

brainly.com/question/23023694

3 0
2 years ago
You go for a run on Monday.You ran 1.23 km.On Tuesday you run the same distance. How far did you run altogether.
erik [133]
You ran 4.64 km altogether
Step-by-step explanation:
If you go for a run on Monday and manage to run 2.32 km and the on Tuesday you run the same distance, then that would be another 2.32 km ran on Tuesday. We can then add these two together to figure out your Total distance ran altogether in those 2 days.
8 0
3 years ago
The dimensions of a rectangle are given in
alexandr1967 [171]

Option A and Option F

The expressions that represent the perimeter of rectangle are 4s + 1 and 2(2s + \frac{1}{2})

<em><u>Solution:</u></em>

From figure,

Length = s

Width = s + \frac{1}{2}

<em><u>The perimeter of rectangle is given as:</u></em>

perimeter = 2(length + width)

Substituting the values we get,

perimeter = 2(s + s + \frac{1}{2})\\\\perimeter = 2(2s + \frac{1}{2})

Thus option F is correct

On further simplification,

perimeter = 2(2s + \frac{1}{2})\\\\perimeter = 4s + 2(\frac{1}{2})\\\\perimeter = 4s + 1

Thus Option A is correct

3 0
3 years ago
Other questions:
  • An internet business sells u.s flags for $16.95 each, plus $2.50 shipping per flag. Shipping is free,however, on orders where m
    7·1 answer
  • If m + 4n=2n + 8m; what is the ratio of n to m
    9·2 answers
  • What is the area of a circle who's radius is 4 ft?
    9·2 answers
  • (x^(2))/(9)+(y^(2))/(49)=1 The distance from the center to the major intercept is
    13·2 answers
  • Probability that carbon emissions beyond permissible level and test predicts it
    10·1 answer
  • What is the total surface area of the square pyramid below?
    13·2 answers
  • Tanya is a professional shopper and is always looking for the better deal. She was looking to purchase a new television and foun
    7·2 answers
  • 3x(-2x)8(-2)=30 what value of x makes the equation true.<br><br> A. 24<br> B.26<br> C.5<br> D.6
    11·1 answer
  • PLS HELP ME IM BEGGIN YOU THIS IS DUE IN 5 MIN
    9·2 answers
  • Which could be the graph of f(x) = |x - h| + k if h and k are both positive?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!