Current Attempt in Progress A procurement specialist has purchased 24 resistors from vendor 1 and 31 resistors from vendor 2. Let X1.1, X1,2,..,X24 represent the vendor 1 observed resistances, which are assumed to be normally and independently distributed with mean 90 ohms and standard deviation 1.5 ohms. Similarly, let X2.1, X2,2.....X31 represent the vendor 2 observed resistances, which are assumed to be normally and independently distributed with mean 95 ohms and standard deviation of 2.2 ohms. What is the sampling distribution of X1 - X2 ? What is the standard error of X1 - X2 ? The sampling distribution of X1 - X2 is N(WX, _X, = i XI- X1 i ) (Round the second answer to four decimal places.) The standard error of X1 - X2 is i (Round your answer to three decimal places.) Statistical Tables and Charts