This problem has been solved! see the answerpull-strength tests on 10 soldered leads for a semi conductor device yield the following results in pounds force required to rupture the bond: 19.9 12.7 13.2 16.9 10.618.8 11.1 14.3 17.0 12.5another set of 8 leads was tested after encapsulation to determine whether the pull strength has beenincreased by encapsulation of the device, with the following results24.9 22.8 23.6 22.1 20.4 21.6 21.8 22.5comment on the evidence available concerning equality of the two population variances. (use the table at5% significant level)

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average