1.42 Doctors are interested in the possible relationship between the dosage of a medicine and the time required for a patient’s recovery. The following table shows, for a sample of 10 patients, dosage levels (in grams) and recovery times (in hours).

These patients have similar characteristics except for medicine dosages. Describe the data graphically with a scatter plot.

1.43 Bishop’s supermarket records the actual price for consumer food products and the weekly quantities sold. Use the data file Bishop to obtain the scatter plot for the actual price of a gallon of orange juice and the weekly quantities sold at that price. Does the scatter plot follow the pattern from economic theory?
1.44 Sixteen transport companies offer a bus transportation from a local city in Croatia, Split, to Croatia’s capital, Zagreb. Croatia’s transportation department wants to estimate whether the number of delays of each company during a six-month period affects the number of passengers traveling between the two cities.
The following data show the number of delays, x, and the number of passengers traveling, y, in (x, y)
pairs for the six month period.
(6; 21,350) (8; 31,200) (9; 40,321) (3; 52,980) (7; 45,970)
(5; 35,900) (8; 36,987) (2; 44,519), (4; 35 980) (3; 37,500) (8; 43,000) (3; 25,160) (6; 59,329)
(4; 54,000) (2; 42,981) (6; 32,989)
Prepare a scatter plot of the points and comment on the relationship between the number of delays and the number of passengers transported.