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
Arturiano [62]
3 years ago
12

Click picture for question

Mathematics
1 answer:
katrin [286]3 years ago
8 0
SAS
(:(:(:(:(:(:(:(:(:
You might be interested in
I need help with simply the number please
marta [7]

7 + \frac{2(5-2)2}{4}

7 + \frac{2(5-2)}{2}

7+5-2

12-2 = 10


7 0
3 years ago
Pilates is a popular set of exercises for the treatment of individuals with lower back pain. The method has six basic principles
Bas_tet [7]

Answer:

a) We reject H₀     We find difference between the mean of the two groups

b) we accept H₀ : There is no statistical difference  ( in the scale of pain) when the difference in samples means is 1

Step-by-step explanation:

Group 1: Only with educational material

Sample size     n₁  =  42

Sample mean   x₁  =  3,2

Sample standard deviation  s₁  =  2,3

Group 2: With exercises with the treatment of individuals

Sample size    n₂   =  42

Sample mean    x₂  = 5,2  

Sample standard deviation   s₂  = 2,3

Test Hypothesis

Null Hypothesis                     H₀           x₂  -  x₁  = 0  or    x₁  =  x₂

Alternative Hypothesis         Hₐ           x₂  -  x ₁ > 0  or    x₂  >  x₁

Significance level  α  = 0,01

Sample sizes are n₁  =  n₂  >  30

We use z-test

for α  = 0,01     z(c)  ≈  2,32

To calculate z(s)

z(s)  =  (  x₂  -  x₁ ) / √ (2,3)²/42  + (2,3)²/42

z(s)  = ( 5,2  -  3,2 )/ √0,2519

z(s)  =  2 / 0,5

z(s) = 4

Comparing  z(s)  and z(c)

z(s) > z(c)

z(s) is in the rejection region. We reject H₀ the true average pain level for the control condition exceeds that for the treatment condition.

b) Does the true average pain level for the control condition exceed that for the treatment condition by more than 1.

In this case

z( s) =  x₂ - x₁ / 0,5

z(s) =  1 /0,5

z(s) = 2

Comparing z(s) and z(c)  now

z(s) < z(c)        2 < 2,32

And z(s) is in the acceptance region ( for the same significance level) and we should accept H₀  equivalent to say that the two groups statistical have the same mean

5 0
3 years ago
PLEASE HELP ME OUT...
e-lub [12.9K]

Answer:

y=-3

Step-by-step explanation:

there is no slope so x will not be used in the equation it also crosses at -3

3 0
3 years ago
All of the following are equivalent except<br> 7x2<br> 4x+3x<br> (4+3)x<br> 7x
swat32

Answer:

7x2

Step-by-step explanation:

7x2 is 14 and all the other ones equal 7

6 0
3 years ago
Read 2 more answers
Drag each equation to show if it could be a correct first step to solving the equation 8(x + 5) = 56.
cupoosta [38]

Answer:

8x+40=56

Step-by-step explanation:

You have to distribute the 8

Then finish the rest of the problem

7 0
3 years ago
Other questions:
  • Find all solutions of the equation in the interval [0,2π) sec(theta) +2=0
    9·1 answer
  • If 8,000 units are produced, what is the total amount of fixed manufacturing cost incurred to support this level of production?
    5·1 answer
  • Alice had pounds of flour at the beginning of the week. at the end of the week, she had pounds. how much has she used?
    7·1 answer
  • PLS HELP ASAP!!!! I WILL GIVE BRAINLIEST!!!!!!!!!!
    15·1 answer
  • Which ratio (fraction) correctly represents 0.1%?<br><br><br><br> please answer ASAP!
    8·2 answers
  • A die is rolled twice. what is the probability of getting either a multiple of 3 on the first roll or a total of 7 for both roll
    7·1 answer
  • Hey how would you put this in a system equation and using the Elimination method. Thank you❤
    5·2 answers
  • Will path 1 intercept the crocidile river
    12·1 answer
  • The equation that fits the data on a scatterplot of the values of stock QRS has
    15·2 answers
  • Is the number of hydrogen atoms a function of the number of oxygen atoms? Explain
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!