An internet

The following table shows the hot dogs bought from a street vendor over the course of eight days ("Demand"). Also shown is the temperature for each day in degrees Celsius. Complete parts a and b below. Temperature ("C) | 21 12 22 18 8 11 18 22 Demand 48 32 34 40 19 24 44 32 a. Calculate the slope and y-intercept for the linear regression equation for these data. y = [+()x (Round to two decimal places as needed.)An Internet retailer would like to investigate the relationship between the amount of time in minutes a purchaser Time Order Size Time Order Size spends on its Web site and the amount of money he or she spends on an order. The table to the right shows the data 19 566 7 562 from a random sample of 12 customers. Construct a 99% confidence interval for the regression slope. 14 $31 39 $368 25 598 5 $127 22 $201 34 $163 2 $50 22 $77 16 542 9 $245 Construct a 99% confidence interval for the slope. LCL = and UCL =_ (Round to three decimal places as needed.)