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
victus00 [196]
2 years ago
14

If you have samples of n 1 equals 22 and n 2 equals 20, in performing the pooled-variance t test, how many degrees of freedom do

you have?
Social Studies
1 answer:
Romashka [77]2 years ago
6 0

If you have samples of n 1 equals 22 and n 2 equals 20, in performing the pooled-variance t test, you have 40 degrees of freedom.

The t-test method is a method where we analyze two sets of data which both these data are independent of each other. This pooled variance test helps us in getting the overall variance in both these different sample sets when we know that both the sample sets are almost equal.

To calculate degrees of freedom, we have the formula

df = n1 +n2 -2

According to the question, n1= 22 and n2= 20

Therefore, degree of freedom= 22 +20 -2 = 40

Hence, degree of freedom is 40.

To learn more about t-test, click

brainly.com/question/15870238

#SPJ4

You might be interested in
After the Battle of Vicksburg a Lincoln issued the Emancipation Proclamation. b Lee never again invaded the South. c the Union c
AnnyKZ [126]

Answer:

. c the Union controlled the Mississippi.

Explanation:

The battle of Vicksburg which was started on 18th May 1863 and lasted till 4 July of the same year is one deciding battles of the Civil War of the United States. Union Major General S.Grant and his Army Of Tennessee crossed the Mississippi and put the Confederates Army into a defensive line. He charged two assaults on the fortress of Vicksburg but with little success and then he decided to besiege the fortress of Vicksburg. the confederate army ran out of supplies and surrendered after forty days. The defeat resulted in weakening the war efforts of Confederates and Mississippi was controlled by the Union.

3 0
3 years ago
What percentile do you need to be a national merit scholar
Vladimir [108]

Answer:

96th percentile

Explanation:

The National Merit Scholarship Program is a competition that awards college scholarships and recognition to highest performing US high school students. There are several requirements and different competition rounds to win, however the first step is placing at or over the 96th percentile at the PSAT/NSMQT tests.

7 0
3 years ago
When American colonists protested the idea of taxation without representation, what Enlightenment idea were they demonstrating?
sveticcg [70]
The colonists protested British taxes policies because they were taxed without representation. They believe that Taxation without representation was tyranny as it is <span>cruel and oppressive government or rule. It is one of the major causes of the America Revolution. </span>

5 0
3 years ago
(A) Give ONE advantage and ONE disadvantage that urbanization has when compared to rural areas. (B) Identify TWO factors that ha
zhuklara [117]

Answer:

(A) Urbanization makes it easier to proportion services like medical services and education because people are more concentrated in urban areas. Rural areas are hard to supply with specialized services. A disadvantage is that crime tends to be statistically higher in urban areas.

Explanation:

In addition to the advantages and disadvantages of urbanization (B) Two factors that have led to the urban sprawl is 1) lack of urban planning and 2) rapid population growth that leads to overcrowding and traffic problems that compel people to move elsewhere or to travel long distances and thus adding to the urban sprawl.  (C) An economic disadvantage that cities may face is that services may be overburdened and it can lead to lower quality of life and higher poverty indicators in inner cities, for example.  (D) Urban sprawl has a negative impact on the environment because more people use private transportation because they have to travel long distances, thus increasing pollution. It also increases the need for parking and thus increasing the price of parking and making a sustainable form of life difficult for most wage earners. (E) Two practices that would be emphasized to create sustainable cities would be to encourage the use of public transportation and non-motorized vehicles like bicycles to reduce pollution and the levels of car traffic in the city.

6 0
3 years ago
In which types of elections can a voter in Georgia participate? Check all that apply.
telo118 [61]
I’m pretty sure it’s primary and general, pretty sure
8 0
3 years ago
Read 2 more answers
Other questions:
  • An ethnic group is a group
    15·1 answer
  • Tom and his mother constantly argue about tom's refusal to wear a clean shirt every day. they are
    12·1 answer
  • 6-8 sentence paragraph about Central Ameria
    15·1 answer
  • What effect did the development of rice as a cash crop have on royal Georgia?
    8·2 answers
  • The concept anomie can be defined as:
    7·1 answer
  • What kind of animal had a population increase in the Florida Everglades in the early 2000s?
    13·1 answer
  • Jorge and Fred have a product they would like to sell. They decide to share the risks and profits by forming an unincorporated b
    10·2 answers
  • After saving money in her piggy bank for three years, Beverly decided to deposit $5,000 of the money in the Millertown Bank. If
    6·1 answer
  • Art at Knossos reflects Minoan culture by
    8·1 answer
  • COMO SE RELACIONA LA POLITICA CON LA LIBERTAD DE EXPRESION <br> MATERIA POLITICA GRACIAS
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!