Jaina and Tomas are being considered as new tenants in an apartment. The landlord looks at their creditworthiness because he wants to be sure his new tenant pays the rent on time and in full. The table below summarizes the information that was on their applications. Application information
Questions
Jaina
Tomas
How many years have you had your job?
5
2
What is your monthly salary?
$1,850
$2,500
How many credit cards do you have?
4
1
How much debt do you have?
$13,000
$7,000
How many times were you late with payments on credit cards in the past year?
5
1

Who will the landlord decide to be more creditworthy and why?
Tomas because the ratio of his debt to income is less.
Jaina because she has had her job longer, which makes her look more stable.
Jaina because she has more credit cards available to her.
Tomas because he makes more money per month.
Mark this and return

The authors of the paper "fudging the numbers: distributing chocolate influences student evaluations of an undergraduate course"† carried out a study to see if events unrelated to an undergraduate course could affect student evaluations. students enrolled in statistics courses taught by the same instructor participated in the study. all students attended the same lectures and one of six discussion sections that met once a week. at the end of the course, the researchers chose three of the discussion sections to be the "chocolate group." students in these three sections were offered chocolate prior to having them fill out course evaluations. students in the other three sections were not offered chocolate. the researchers concluded that "overall, students offered chocolate gave more positive evaluations than students not offered chocolate." indicate whether the study is an observational study or an experiment. give a brief explanation for your choice.