What is the purpose of a two sample t-test? to test if two samples are the same. to test if two populations are the same. to test if two population means are the same. to test if two sample means are the same

To test if two population means are the same.

Step-by-step explanation:

To Find :What is the purpose of a two sample t-test?

Solution:

Two sample test is used to check the difference between the two population means .

Let us suppose mean of population 1 =

Let us suppose mean of population 2=

So, Two sample test is used to check whether or

Hence the purpose of a two sample t-test is To test if two population means are the same.

i belive those are the ones that are under 90 degreese.

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column