Flossing Analysis

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

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

Flossing Analysis

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

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

Flossing Analysis

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

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

Flossing Analysis

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

Flossing Analysis

Requirement• No more than 20% of all expected frequencies

are less than 5

Flossing Analysis

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

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.

Flossing Analysis

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

Flossing Analysis

ConclusionWe 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

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

Flossing Analysis

Flossing Analysis