The standard manufacturing process for thin-film resistors produces resistors with an average of 1k and a standard deviation of 3.5 Q. Twenty samples of a new process were tested, and the data can be found in the Pr1 table. Has there been a real improvement in product variability? Use = 0.05. Resistors 1003,635 997,21 1003,78 1002,3 997,5684 998,7162 1001,854 1001,238 999,8828 998,7618 998,5465 1002,425 998,2877 1002,465 1002,547 999,428 998,3603 998,4963 1001,549 999,6868