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

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

The number of people absent from classes from Monday to Friday is calculated to test if the day of the week has an impact on attendance.The following results are seen:Monday - 15Tuesday - 17Wednesday - 12Thursday - 10Friday - 6Test the hypothesis that day has an effect on absence, at a 5% significance level

A recent study with 3,000 participants reported a fairly powerful negative correlation between the number of class absences by college students and their GPAs. According to recent guidelines for interpreting the magnitude of effect sizes, what r value was most likely to have been reported in this study?−.50−.30.50.30

If you predict that two groups, A and B, will be related on a certain variable, what is the null hypothesis? A. That there is no difference between A and B. B. That there is no relationship between A and B. C. That A will be greater than B. D. That there is no difference between A and B or that A is greater than B.

In a class of students, the following data table summarizes how many students passed a test and completed the homework due the day of the test. What is the probability that a student passed the test given that they did not complete the homework?Passed the test Failed the testCompleted the homework 9 3Did not complete the homework 4 6