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IB Math Studies Chi Rectangular IA

Predictability of Social Media Use to Quality Averages

IB Math Research

Spring 2013

Table of Contents:

Introduction/Purpose…………………………………………………………….. p. three or more

Data Collection Method………………………………………………………..... l. 3 - 4

Data Analysis: Chi-Squared Statistic

Rate of recurrence Table…………………………………………………………p. four - 5

Contingency Table………………………………………………………. p. 5 – six

Chi – Squared Statistic…………………………………………………... p. 7

Degrees of Freedom………………………………………………………p. several

Critical Value…………………………………………………………….. p. six – almost eight

Conclusion…………………………………………………………………….... p. being unfaithful - twelve

Introduction/Purpose

Predictability is the degree to which a proper prediction or perhaps forecast of any system's state can be manufactured quantitatively. It is necessary to achieve maximum productivity or perhaps potential when ever completing a job. The ability to foresee an incident before other folks allows one to alter different facets in time to garner the most productivity. The question that has been tormenting today's technology is the make use of social media sites, and their consequences in our lives. A restaurant only orders an amount of food enough for its requirements. If the restaurant orders much more than it needs, then your extra food will mess up and the restaurant will lose several of its inventory. A trader which includes inside information concerning a corporation might sell his stock a few minutes before the price drastically comes, saving him self a lack of hundreds of dollars. Likewise, a student able to forecast his or her class depending upon social websites usage might hold an invaluable asset in determining what students need to do in order to pursue a particular level average. Let me conduct my own project within the principle that students spend some time on well-liked Web sites like Twitter or Facebook on a regular basis and the affect will appear on the outcome of his or her grade (per semester). Is there a significant correlation among a student's average grade and the time spent on social websites websites? I actually hypothesize which the student's average grade will probably be dependent upon time spent on online communities. To further my personal investigation, I will use a frequency table and contingency desk to consider the situation if perhaps grades happen to be dependent on period spent applying social media sites. Info Collection Approach

I conducted my study by setting up a survey to get 200 randomly selected kids to finish. I will compare the 200 students, distinguishing them among time invested in social media sites and the average class received per semester. To compare my data, I will create two tables: a frequency table and a contingency desk. One is going to represent the actual number of students surveyed as well as the other will show the affiliation between the two variables. Review:

CIRCLE 1: What is your typical grade (in a semester)? A M C G F(or below) CIRCLE ONE PARTICULAR: How much time do you dedicate to the computer/social media sites? Less than 1 hour1-2 hours2-3hours3 hours or more

Data Evaluation

Frequency Desk:

In the given situation, the question at hand is definitely " just how much time do students truly spend on social media sites? ” The results in the frequency table below sum it up the test of 2 hundred randomly selected high school students, their particular grades, and their time invested in social media sites:

A

93-100

N

85-92

C

77-84

M

70-76

Farreneheit

Below 70

Total

Less than 1 hour

3

5

3

3

two

36

one particular – two hours

34

13

14

five

0

66

2 – 3

hours

16

27

18

4

1

sixty six

3+

hours

13

four

2

7

6

32

Total

86

49

thirty seven

19

9

200

Following placing my personal collected info in desk form, I calculated the sum of each number of students' grades plus the time used on the computer using social media sites. A contingency Table:

Dining tables such as these, when the number of findings are came into according to 2 different factors (or classifications) are called contingency tables. The question being answered is usually, " Will be grades and time put in (daily) about...

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