A professor determined the relationship between the time spent studying (in hours) and performance on an exam.
Performance = 70.443 + 4.885 * (time)
Ann studied 2.6 hours for the last exam. However there was a concert in town the night before and her score was 16 points lower than
expected. What was her score on this exam, rounded to the nearest integer?

What is the midpoint of the segment below? (-4,-7) (5,6)

Which equation represents the function on the graph?

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0