Question Assignment description
A random sample of 15 workers from a vacuum flask meeting line was chosen from a big
quantity of such workers. Ivor Stopwatch, a work-study engineer, requested every of these workers to
assemble a one-liter vacuum flask at their regular working velocity. The instances taken, in seconds, to
full these duties are given beneath.
109.2 146.2 127.9 92.zero 108.5
91.1 109.eight 114.9 115.three 99.zero
112.eight 130.7 141.7 122.6 119.9
Assuming that this sample got here from an underlying regular inhabitants, examine the declare that
the inhabitants imply meeting time is lower than 120 seconds at a 1% significance.
