Q5. A sample of 25 observations provides the following statistics: sx=2,sy=5,andsxy=1.75 (Round your answers to 3 decimal places if needed) a. Calculate and interpret the sample correlation coefficient rxy : b. Specify the competing hypotheses (H0,HA) in order to determine whether the population correlation coefficient differs from zero. c. Calculate the value of the test statistic. d. Find the critical value at the 5% significance level. e. At the 5% significance level, what is the conclusion to the hypothesis test