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Flossing Analysis. Introduction Sampling Methods Descriptive Statistics Checking Requirements Inferential Statistics Conclusion Flossing Analysis.

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Presentation on theme: "Flossing Analysis. Introduction Sampling Methods Descriptive Statistics Checking Requirements Inferential Statistics Conclusion Flossing Analysis."— Presentation transcript:

1 Flossing Analysis

2 Introduction Sampling Methods Descriptive Statistics Checking Requirements Inferential Statistics Conclusion Flossing Analysis

3 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: H o : There is no relationship between gender and flossing H a : There is a relationship between gender and flossing Flossing Analysis

4 Introduction Sampling Methods Descriptive Statistics Checking Requirements Inferential Statistics Conclusion Flossing Analysis

5 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

6 Introduction Sampling Methods Descriptive Statistics Checking Requirements Inferential Statistics Conclusion Flossing Analysis

7 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

8 Introduction Sampling Methods Descriptive Statistics Checking Requirements Inferential Statistics Conclusion Flossing Analysis

9 Requirement No more than 20% of all expected frequencies are less than 5 Flossing Analysis

10 Introduction Sampling Methods Descriptive Statistics Checking Requirements Inferential Statistics Conclusion Flossing Analysis

11 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

12 Introduction Sampling Methods Descriptive Statistics Checking Requirements Inferential Statistics Conclusion Flossing Analysis

13 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 Flossing Analysis

14 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

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