A NP researcher randomly sampled 100 women aged 50-65 years and measured their minutes of exercise in the past week, BMI, and depression. Depression was measured using a Likert type scale consisting of 20 items. The summation score ranged 'orn 20 to 100 and the higher the score, the higher the level of depression. The Pearson correlation coefcients (r's) are summarized in the following table. For the analyses, statistical signicant level was set at u=0.05.| Table l: correlation among minutes of exercise, BMI and depression Exercise in past week BMI minutes Depression score 4130* 0.20 *p *i 0.05