Question: A psychology professor decides to give a quiz at the
A psychology professor decides to give a quiz at the beginning of every class in hopes that it will encourage her students to do the assigned readings. However, after a few quizzes have been given, she begins to wonder if her quizzes are truly separating those students who read the material but did not understand it. To find out, she asks student to write down on their quizzes how much time they spent reading the assignment. She then ranks them in terms of the amount of time spent reading the material (X) and their grades on the quiz (Y). The following results were obtained:
Compute the rank-order correlation and indicate whether there is a significant relationship between X and Y.
Relevant QuestionsIdentify the level of measurement – nominal, ordinal, or interval – represented in each of the following questionnaire items: a. Your gender: 1. ___ Female 2. ___ Male b. Your age: 1. ___ Younger than 20 2. ___ 20-29 3. ...1. A cross-tabulation of serious illnesses is a table in which the distribution of illnesses is a. presented separately for the categories of a second variable, such as gender, age, or race. b. presented in a table. c. ...From the following table representing the gender of demonstrators outside a local Planned Parenthood, find (a) The percent of pro-choice demonstrators who are female, (b) The percent of pro-life demonstrators who are ...1. A frequency distribution of the number of defendants sentenced to death in each of the 30 states during the year 2009 would be depicted best in the form of a a. histogram b. bar graph c. frequency polygon d. pie chart 2. ...The hourly wages (in dollars) of seven employees in a small company are as follows: Find (a) The mode, (b) The median, and (c) The mean.
Post your question