The Mean Corporation is trying to raise employee morale, especially in Factory (3 where high quality widgets are produced. In Factory C there are 10 employees who are responsible for the actual construction of the widgets and other employees who are responsible for quality control. A widgetmaking competition is to be held for the 10 widget constructors. They will each construct one widget as fast as they can. If the average time taken is low enough they all get a pay rise. Their times from the competition are presented below: Times (seconds) 86.5 89.0I 85.9 89.0 81.7 84.8 83.8 83.4 88.4 84.8 a) Calculate the mean time taken. Give your answer to 1 decimal place. Mean 2 \\:| seconds b) Calculate the standard deviation. Give your answer to 1 decimal place. Standard deviation 2 |:| seconds