A chemistry professor suspects that there is a relationship between the number of classes a student misses and that student’s score on the final exam (from 0 to 100%). The professor chooses a random sample of students in Introduction to Chemistry and collects data about each student’s final exam score and number of missed days of class.Which of the following is the most appropriate statistical test to use to determine if there is a relationship between number of missed classes and final exam scores? Inference for regression Chi-squared test for independence Two-sample t-test ANOVA Matched pairs

At the beginning of the semester, students who registered for a statistics course were randomly assigned to two sections, each taught by a different instructor. At the end of the semester, we would like to test whether there are differences in performance on the final exam between the two sections.Which of the following is the most appropriate statistical test to use to test whether there are differences in performance on the final exam between the two sections? ANOVA Two-sample t-test Matched pairs t-test Inference for regression Chi-squared test for independence

The following data shows the number of absences (X) of 5 students and their corresponding grade (Y) in Statistics.  Determine if there is a relationship between the number of absences and grade in Statistics by completing the table and solving for r.Student           X                Y     A                 1              90     B                 6              81     C                 3              86     D                 0              90     E                  8              7816.          What would be the null hypothesis?*There is no significant difference between the number of absences and the grades of students.There is a significant difference between the number of absences and the grades of students.There is no significant relationship between the number of absences and the grades of students.There is a significant relationship between the number of absences and the grades of students.None of the above

An athletic trainer wants to find out if there is a significant difference in the mean height of football players and basketball players in a large school district. She randomly selects 100 high school varsity football players and 100 high school varsity basketball players to compare the mean heights for each group.Which of the following is the most appropriate statistical test to use to determine if there is a significant difference in mean height between basketball and football players? Chi-squared test for independence Matched pairs t-test Inference for regression ANOVA Two-sample t-test

45.  If a researcher conducts a study in which the reading ability of a class of 20 second graders is tested at the beginning and at the end of the year, the appropriate statistical procedure to analyze the results would be*a. Chi-squareb. The dependent samples t-testc. ANOVAd. ANCOVA

Researchers question whether there is a relationship between employment status (employed full-time, employed part-time, unemployed) and highest level of education attained (some high school, graduated high school, some college, graduated college).Which of the following is the most appropriate statistical test to use to determine if employment status is related to education level? Chi-squared test for independence Matched pairs t-test ANOVA Two-sample t-test Inference for regression