Do you accept or reject the null hypothesis that there is no relationship between BMI and the ratio of good bacteria in the digestive tract at the significance level P=0.05? Please paste your data output file in the space below.

Scenario 4:
Have you noticed the abundance of television ads for yogurt that contain probiotics? Probiotics are live micro-organisms which, when administered in adequate amounts, confer a health benefit on the host. Your body needs to have a healthy amount of ”good” bacteria in the digestive tract. Many yogurts are made using active, good bacteria. A diabetes researcher hypothesized that ratio good bacteria in the digestive tract would be decreased in people that are overweight. The results are summarized in the table below.

• What type of statistical test would you use to determine if there is an association between the ratio of good bacteria and BMI?

1. Multiple linear Regression
2. ANOVA
3. Pearson Product-Moment Correlation Coefficient
4. Spearman Rank Correlation Coefficient

Answer:  ___________

• Do you accept or reject the null hypothesis that there is no relationship between BMI and the ratio of good bacteria in the digestive tract at the significance level P=0.05? Please paste your data output file in the space below.

Answer: ___________