The theater of the city of Mayaguez has a popular concert in
schedule and has decided to sells tickets by phone. For that, it
needs to decide how many operators to hire for the sale. On one
hand, it doesn't want the customers to wait too long, but on the
other hand the operators are expensive. The data the manager has
collected from previous concerts is as follows. Operators Wait Time
4 385 5 335 6 383 7 344 8 288 Specifically, we want to find whether
there is a significant linear correlation between the variables.
What is the value of r? Select one:
a. -0.73
b. -0.28
c. 0
d. 0.68