An instructor is teaching two sections of the same basic statistics course. The instructor is giving the same exams, homework assignments, and quizzes in both sections. Which t procedure should be used to determine if there is a difference in the academic performance between the two course sections?

One-sample t test.

Matched-pairs t procedure.

Two-sample t test.

None of the above.

Two-sample t test.

Because we have two different sections and we want to see if exists difference between the two averages. Both sections are independent so it can be considered as different samples.

Step-by-step explanation:

Two-sample t test.

Because we have two different sections and we want to see if exists difference between the two averages. Both sections are independent so it can be considered as different samples.

If we don't know the population deviations, so for this case is better apply a two sample t test to compare means, and the statistic is given by:

(1)

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine whether the means of two groups are equal to each other".

answer: idk

step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have