Acounty real estate appraiser wants to develop a statistical model to predict the appraised value of houses in a section of the county called east meadow. one of the many variables thought to be an important predictor of appraised value is the number of rooms in the house. consequently, the appraiser decided to fit the simple linear regression model, modifyingabove y with caret equals beta 0 plus beta 1 x commay=β0+β1x, where yequals=appraised value of the house (in $thousands) and xequals=number of rooms. using data collected for a sample of n equals 74n=74 houses in east meadow, the accompanying results were obtained. give a practical interpretation of the estimate of the slope of the least squares line.

In a study of the relationship between socio-economic class and unethical behavior, 129 university of california undergraduates at berkeley were asked to identify themselves as having low or high social-class by comparing themselves to others with the most (least) money, most (least) education, and most (least) respected jobs. they were also presented with a jar of individually wrapped candies and informed that the candies were for children in a nearby laboratory, but that they could take some if they wanted. after completing some unrelated tasks, participants reported the number of candies they had taken. it was found that those who were identiď¬ed as upper-class took more candy than others. in this study, identify: (a) the cases, (b) the variables and their types, (c) the main research question, (d) identify the population of interest and the sample in this study, and (e) comment on whether or not the results of the study can be generalized to the population, and if the ď¬ndings of the study can be used to establish causal relationships.