Question 11 dr. johnson wants to do a study to investigate whether the physiological measure, heart rate variability, varies over time or whether it is a trait that stays stable within the same person over time. he records participants’ heart rate variability once at the beginning of the semester and once at the end of the semester. he finds a high positive correlation (r = .55 between the first and second time points. what would a scatterplot of these results (heart rate variability at the beginning of the semester on the x-axis, heart rate variability at the end of the semester on the y-axis look like?
a. the cloud of points would have no slope at all.
b. there isn’t enough information given to determine this.
c. the cloud of points would slope upward from left to right.
d. the cloud of points would slope downward from left to right.

When you hire an independent contractor you don't have to pay the contractors what

Suppose there are three types of consumers who attend concerts at your university’s performing arts center: students, staff, and faculty. each of these groups has a different willingness to pay for tickets; within each group, willingness to pay is identical. there is a fixed cost of $1,000 to put on a concert, but there are essentially no variable costs. for each concert: i. there are 140 students willing to pay $20. (ii) there are 200 staff members willing to pay $35. (iii) there are 100 faculty members willing to pay $50. a) if the performing arts center can charge only one price, what price should it charge? what are profits at this price? b) if the performing arts center can price discriminate and charge two prices, one for students and another for faculty/staff, what are its profits? c) if the performing arts center can perfectly price discriminate and charge students, staff, and faculty three separate prices, what are its profits?

Which of the following occupations relate to a skill category of words and literacy