. 26) The slope (b1) represents 26) ______
. SCENARIO 12-2 A candy bar manufacturer is interested in trying to estimate how sales are influenced by the price of their product. To do this, the company randomly chooses 6 small cities and offers the candy bar at different prices. Using candy bar sales as the dependent variable, the company will conduct a simple linear regression on the data below: City Price ($) Sales River Falls 1.30 100 Hudson 1.60 Ellsworth 1.80 Prescott 2.00 Rock Elm 2.40 Stillwater 2.90 27) Referring to Scenario 12-2, what is the estimated slope for the candy bar price and sales data? 27) ______ 90 90 40 38 32
SCENARIO 12-9 It is believed that, the average numbers of hours spent studying per day (HOURS) during undergraduate education should have a positive linear relationship with the starting salary (SALARY, measured in thousands of dollars per month) after graduation. Given below is the Excel output for predicting starting salary (Y) using number of hours spent studying per day (X) for a sample of 51 students. NOTE:Only partial output is shown. Note: 2.051E- 05 = 2.051*10-05and 5.944E- 18 = 5.944*10-18.