ASAP please 8

RTA eclass Steel rods are widely used in the construction industry. Suppose a manufacturer of steel rods is experimenting with a new technology that is supposed to increase the mean breaking strength of the rods. A random sample of 14 rods was obtained with old technology (OLD) and another random sample of 14 was obtained with the new technology (NEW). The breaking strength of each rod in the two groups was determined (in psi, pounds per square inch). Then, the 14 new technology rods were subjected to high pressure in three high pressure chambers and the breaking strength of each of the 14 rods was determined again (NEWHPRESS) OLD 52 55 45 48 43 63 54 63 58 70 52 58 58 52 NEW 65 67 67 60 56 53 58 58 55 NEWHPRESS 70 71 62 77 71 72 78 79 62 56 62 60 68 a. Use the appropriate Excel function(s) to obtain the first, the second, and the third quartile for the breaking strength of old technology rods (OLD). Respectively, what are the three quartiles? O Q1 = 58.0, Median = 63.21, Q3 = 67.0 O Q1 = 58.0, Median = 64.0, Q3 =67.0 O Q1 = 62.0, Median = 69.0, Q3 = 71.75 O Q1 = 52.0, Median = 54.5, Q3 = 61.75 O Q1 = 52.0, Median = 55.79, Q3 = 61.75 b. Obtain the scatterplot of the breaking strength of new technology rods versus the breaking strength of old technology rods. Which of the following is TRUE about the relationship between breaking strength for old and new technology rods? There is a weak, negative linear relationship between the two variables. There is a strong, positive linear relationship between the two variables. There is a weak, positive linear relationship between the two variables There is a strong, negative linear relationship between the two variables There is a strong positive non-linear relationship between the two variables