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
damaskus [11]
2 years ago
6

When is it appropriate to use the paired t test (involving the mean of the differences)? A. When two independent samples are com

pared. B. When two dependent samples are compared. C. When four samples are compared at once. D. When any two samples are compared.
Mathematics
1 answer:
sveticcg [70]2 years ago
7 0

Answer:

B. Two dependent samples are compared

Step-by-step explanation:

We use it when we are comparing Two dependent samples. The paired t-test can be likened to the repeated measures ANOVA test. Both of these two test are useful when comparing how a static group does in different test conditions.

But the difference between these two are:

We use the paired t-test if the explanatory variable has two levels.

While the Repeated measures ANOVA is used when the explanatory variable has greater than two levels.

You might be interested in
When 2 times a number is increased by 9 the answer is the same as when 30 is decreased by the number
galben [10]

Answer:

(2*n)+9=n-30

Step-by-step explanation:

I'm not sure but I think that is the equation

8 0
3 years ago
Read 2 more answers
6 ) y = -x + 4<br> slope =<br> y-intercept =<br> What it is the answers to the question above
maksim [4K]
Slope= -1
Y-intercept= 4
7 0
2 years ago
A grocer can buy strawberries for $1.38 per pound. write an equation relating c, the cost, and p, the pounds of strawberries.
slamgirl [31]

Answer:

1.38p=C

Step-by-step explanation:

each pound is $1.38 and pounds is p they have to equal to C, the total.

5 0
3 years ago
webassign If a snowball melts so that its surface area decreases at a rate of 6 cm2/min, find the rate at which the diameter dec
drek231 [11]

Answer:

The answer is \frac{3}{10\pi }  cm/min

Step-by-step explanation:

Assuming the snowball is a perfect sphere, then if A denotes the surface area and D the diameter then:

A=4\pi r^{2} = 4\pi (\frac{D}{2} )^{2} =\pi  D^{2}

Differentiating wrt r we have:

\frac{dA}{dD} =2\pi D

We are told that \frac{dA}{dt}= -6 and we want to find \frac{dD}{dt}

By the chain rule we have:

\frac{dA}{dD}=\frac{dA}{dt}.\frac{dt}{dD}=\frac{\frac{dA}{dt} }{\frac{dD}{dt} }

∴2\pi D=-\frac{6}{\frac{dD}{dt} }

∴\frac{dD}{dt}=-\frac{6}{2\pi D}

When D=10 then

\frac{dD}{dt} =-\frac{6}{10*2\pi } =-\frac{3}{10\pi }

The sign (-) shows that the D is decreasing.

3 0
3 years ago
A student takes ten exams during a semester and receives the following grades: 90, 85, 97, 76, 89, 58, 82, 102, 70, and 67. Find
slamgirl [31]
The answer is D because i found it online
4 0
2 years ago
Other questions:
  • Tools return to our hardware store as damaged or resold has damaged at a reduced price 32% of the original price of $164.95. wha
    14·2 answers
  • You were planning on reading the last book of the hunger games. The book is 350 pages long and you have read 3/5 of the book so
    12·2 answers
  • Ill mark brainllest if someone gets it right
    10·2 answers
  • Please rate them need to know which one to put as profile pic
    13·1 answer
  • I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS ALL PARTS CORRECTLY!!!!
    13·1 answer
  • 0.325 is _____ 100 percent.
    5·1 answer
  • I need help !!! Btw is a lesson but im confused and don’t get a all
    7·1 answer
  • PLEASE HELP 25 POINTS FOR 5 QUESTIONS
    12·2 answers
  • 3
    6·1 answer
  • How do you solve this using system of equations <br> y = 3x -1 <br> y = -x +3
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!