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# The director of an obesity clinic in a large northwestern city believes that drinking soft drinks contributes to obesity in children To determine whether a relationship exists between these two

### The director of an obesity clinic in a large northwestern city believes that drinking soft drinks contributes to obesity in children To determine whether a relationship exists between these two

The director of an obesity clinic in a large northwestern city believes that drinking soft drinks contributes to obesity in children. To determine whether a relationship exists between these two variables, she conducts the following pilot study. Eight 12-year-old volunteers are randomly selected from children attending a local junior high school. Parents of the children are asked to monitor the number of soft drinks consumed by their child over a 1-week period. The children are weighed at the end of the week and their weights converted into body mass index (BMI) values. The BMI is a common index used to measure obesity and takes into account both height and weight. An individualist considered obese if he or she has a BMI value ≥ 30. The following data are collected.

 Number of Soft Drinks Child Consumed BMI 1 3 20 2 1 18 3 14 32 4 7 24 5 21 35 6 5 19 7 25 38 8 9 30

a. Graph a scatter plot of the data. Does the relationship appear linear?

b. Assume the relationship is linear and compute Pearson r.

mahesh 24-Aug-2020