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
yuradex [85]
3 years ago
15

Question 1

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
3 0

Answer:

The teacher randomly divides the class into two groups. One of the groups receives computer-based instruction and the other group receives traditional instruction without computers. After instruction, each student takes a test and the teacher wants to compare the test scores of the two groups.

Step-by-step explanation:

A two sample t-test is used to compared the means of two samples who were exposed to different scenarios and therefore, it helps us to see the difference between these two samples.

In this problem, the teacher is experimenting with a new computer-based instruction. To be able to use the two-sample t-test she would have to have two randomly assigned samples and expose each of these two samples to different scenarios (one would receive a traditional instruction and the other one would receive a computer instruction), and finally she would need to compare the scores in both samples.

Therefore, the correct answer would be b) The teacher randomly divides the class into two groups. One of the groups receives computer-based instruction and the other group receives traditional instruction without computers. After instruction, each student takes a test and the teacher wants to compare the test scores of the two groups.

<u>*Option A is incorrect</u> because the students are only exposed to the lesson using a computer program and therefore they aren't exposed to different scenarios.

<u>*Option C is incorrect</u> because although in this case the teacher uses both traditional and computer methods, there are not two different samples and she only gets the opinion of the students which is not an exact method of getting information on the effectiveness of the computer based method.

You might be interested in
The school bus Evie rides is scheduled to arrive at her stop at 8:20 a.m. each day. The table below shows the actual arrival tim
saveliy_v [14]
Im not sure what the answer is but dont open the link its a virus
6 0
3 years ago
Read 2 more answers
What is the solution to the inequality?<br><br><br> -2x-4 less than or equal to 11
Rashid [163]

Answer:

x ≤  \frac{-15}{2}

Step-by-step explanation:

So first you would start by getting rid of the -4. To get rid of -4, you would need to + 4 on each side leaving you with -2x ≤ 15. Now you need to get rid of -2 from x so that would convert equation to x ≤  \frac{-15}{2}. Hoped it helped!

⭐ Answered by Foxzy0⭐

⭐ Brainliest would be appreciated, I'm trying to reach genius! ⭐

⭐ If you have questions, leave a comment, I'm happy to help! ⭐

4 0
3 years ago
-5=(-6)+x/4 Help please and Ty with work :)
Marysya12 [62]

Answer:

-5=(-6)+x/4

-5+6=x/4

(4)1=x/4(4)

4=x

7 0
3 years ago
Find the measure of angle b
g100num [7]
The answer for angle b is: 25°
4 0
2 years ago
Read 2 more answers
How many miles is it from Turtle Bay to Waialua Bay​
lidiya [134]
12.9 miles or 27 minutes

4 0
3 years ago
Other questions:
  • 5. What is the solution to the system of equations?
    8·1 answer
  • Help would be much appreciated
    11·2 answers
  • Three spherical balls with radius r are contained in a rectangular box. two of the balls are each touching 5 sides of the rectan
    6·1 answer
  • 15 POINTS A 4-inch length is represented as 1/8 on a scale drawing. What is the scale used on the drawing?
    8·1 answer
  • Find the value of x in the triangle below​
    7·1 answer
  • Select the best answer.
    15·2 answers
  • BRAINLY IF CORRECT!!!! Steve tossed a coin many times. He got 39 heads and 52 tails. What is the experimental probability that h
    6·1 answer
  • a windowpane is 5.7 Inches by 7.1 inches. what is the distance between opposite corners of the windowpane? if necessary, round t
    9·1 answer
  • The _________________________________ is the ratio between two directly proportional quantities. Two quantities are directly pro
    14·1 answer
  • A 7th grade homeroom was asked if they would
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!