澳洲数学assignment代写:商业分析线性回归模型

Thermata is company that has grown and flourished because of its good customer relationships, which include partnering, delivering a quality product on time, and listening to the customer’s needs. Suppose company management wants to formally measure customer satisfaction at least once a year and develops a brief survey that includes the following four questions. Suppose 115 customers participated in this survey with the result shown. Analyse the data by finding a confidence interval (with =0.05) to estimate the(positive) population response to each of the four questions. Provide your interpretation and discussions of the results.

Now suppose Thermata officers want to ascertain employee satisfaction with the company. They randomly sample nine employees and ask them to complete a satisfaction survey under the supervision of an independent testing organisation. As part of this survey, employees are asked to respond to questions on a 5-point scale where 1 is low satisfaction and 5 is high satisfaction. 

The questions and the results of the survey are shown in the next column. Analyse the data by finding a confidence interval (with =0.05) to estimate the population response to each of these questions.  Provide your interpretation and discussions  of the results.

se the data provided in the housingmarket.csv file for this question. Develop the best possible linear regression model to predict the median value of the house based on its characteristics as well as the neiborhood characteristics. Discuss the results. (Hint: Your discussion should include how good the model is, what are the important predictors of house prices, how do these predictors relate to house prices, are there any issues with the data/model that we should be aware of…). You will need to support your answer with figures and tables when necessary.