A college instructor is teaching a summer class and believes…
A college instructor is teaching a summer class and believes that there is an association between the temperature and the number of students absent. The instructor randomly chooses a sample of days and records the temperature, in degrees Fahrenheit, and the number of students absent. Temp. oF (x) 72 85 91 90 88 98 75 100 80 Number Absent (y) 3 7 10 10 8 15 4 10 5 1. Find the linear correlation coefficient r for this data set. Round to three decimal places. 2. A hypothesis test is to be done to determine if there is linear correlation between these two variables. The null and alternative hypotheses are given below. Use a 0.05 level of significance.