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.

25/4

step-by-step explanation:

call segment cd's length x. because dc and ab are parallel, angle acd and cab, so triangles adc and abc are similar and we can set up the equation x / ac = ac / ab, or x / 5 = 5 / 4 and x = 25/4.

mk./km: lm

step-by-step explanation:

,mlmlm

; mk

lk