Jorge wants to create a model to predict sales (in $10000) based on the number of hours worked and the number of customers seen.Using the data below answer the questions:

Sales Hours Worked Number of Customers

15.64454

15.74352

15.44155

14.34155

11.84039

9.74028

9.64037

10.23858

11.33867

14.332186

• In order to test if hours worked is a significant predictor of Sales given Number of customers is held constant, I would use the ___ test(Enter t, z,or p)?
• The p-value for the test statistic above (that is the test statistic to determine if hours worked is a significant predictor of Sales given Number of customers is held constant is ________ (write p-value to three significant digits)?
• Approximately 86% of the variability in Sales can be explained by the variability in hours worked (true or false)?
• To the nearest dollar (do not use dollar sign or comma), if a salesperson worked 40 hours and had 60 customers, what would you expect sales to be?
• Is the residual for the last observation (the one with 32 hours worked and 186 customers) positive or negative (write positive or negative)?