A federal law requires periodic testing in standard subjects. A random sample of 35 junior high school students from a certain city was selected, and each student's scores on a standardized mathematics examination and a standardized English examination were recorded. School administrators were interested in the relationship between the two scores. Suppose the correlation coefficient for the two examination scores is 0.83. Complete parts a and b below. Use a = 0.10 where needed. a. Provide an explanation of the sample correlation coefficient in this context. Fill in the blank below. There appears to be a fairly strong positive correlation between the standardized mathematics examination and the standardized English examination for these students. b. Using a level of significance of a = 0.10, test to determine whether there is a positive linear relationship between mathematics scores and English scores for junior high school students in the city. What are the appropriate null and alternative hypotheses to test for a positive linear relationship? OA. Ho: P = 0 OB. Ho: p20 HA: P#0 HA: P o OD. Ho: p#0 HA: PSO HA: P = 0 OE. Ho: P O