Flossing Analysis

1
Flossing Analysis
2
Flossing Analysis

• Introduction
• Sampling Methods
• Descriptive Statistics
• Checking Requirements
• Inferential Statistics
• Conclusion

3
Flossing Analysis

• We were interested in the hygiene of our peers
  and we know that flossing is vital to oral
  health. We were curious to see what the
  statistics were between men and women on this
  matter.

Introduction

• Question
• How often do you floss? (Between males and
  females).

• Hypotheses
• Ho There is no relationship between gender and
  flossing
• Ha There is a relationship between gender and
  flossing

4
Flossing Analysis

• Introduction
• Sampling Methods
• Descriptive Statistics
• Checking Requirements
• Inferential Statistics
• Conclusion

5
Flossing Analysis

• Sampling method Simple Random Sample
• We made it a random sample by using systematic
  sampling, by surveying every third person, and
  chose by rolling a die to start off with the
  first person.
• Data 140 surveys (70 for women and 70 for men)
• Various buildings Hart, Romney, Smith, Taylor,
  Hinckley and Ricks.
• 0 of non-response

6
Flossing Analysis

• Introduction
• Sampling Methods
• Descriptive Statistics
• Checking Requirements
• Inferential Statistics
• Conclusion

7
Flossing Analysis

• It seems as though females floss their teeth more
  often than males do since we see that more than
  half the females floss once a day. The closest
  they get to being equal between gender was option
  B which was flossing once a week.
• A (Blue) represents once a day
• B (Green) represents once a week
• C (Tan) represents once a month
• D (Purple) represents once a year

8
Flossing Analysis

• Introduction
• Sampling Methods
• Descriptive Statistics
• Checking Requirements
• Inferential Statistics
• Conclusion

9
Flossing Analysis

• Requirement
• No more than 20 of all expected frequencies are
  less than 5

10
Flossing Analysis

• Introduction
• Sampling Methods
• Descriptive Statistics
• Checking Requirements
• Inferential Statistics
• Conclusion

11
Flossing Analysis

• Our Test of Hypothesis
• Test statistic 9.282
• P-value .026
• Degrees of freedom 3
• Since our p-value was less than our level of
  significance we reject the null hypothesis.

12
Flossing Analysis

• Introduction
• Sampling Methods
• Descriptive Statistics
• Checking Requirements
• Inferential Statistics
• Conclusion

13
Flossing Analysis
Conclusion We have
sufficient evidence to say that there is a
relationship between gender and flossing.

• Reasons for the Result
• Women take more of an interest in the way they
  appear to others.
• Women can be better at forming good hygiene habits

14
Flossing Analysis

• Further Study
• One more option including the choice of 3-4 times
  a week.
• We would have handed the survey to them and
  returned shortly after they had answered it.
• We would introduce our survey at the top of the
  paper just in case we explained it insufficiently

15
Flossing Analysis