The CDC physical activity guidelines recommend at least 150 minutes a week of moderate- intensity aerobic physical activity for adults. A sample of 75 adults in a study of cardiovascular risk factors reported engaging in moderate-intensity aerobic physical activity 120 minutes a week with a standard deviation of 60 minutes. Based on the sample data, is the physical activity significantly less than recommended? O Wilcoxon Signed Rank test One sample t-test One-way ANOVA O Paired t-test