For each of the following linear regression results, please indicate whether there is a positive relationship, negative relationship, or no relationship between the independent and dependent variables. Beta estimate = 0.159, p-value = 0.003, adjusted r-squared = 0.39 Beta estimate = -86.4, p-value = 0.38, adjusted r-squared = 0.04 Beta estimate = -7.96, p-value = 0.009, adjusted r-squared = 0.67