Instructions: 1. Solve these problems using Microsoft Excel. Problem-1 Table 1 shows the data of temperature recorded by four different temperature sensors at certain time interval. i. Calculate the mean temperature at each time interval. ii. Plot the mean temperature of the four sensors against time. The standard deviation of each reading should also be added to the plot as error bars (y-error). Time (min) Average Std. deviation 0.5 2 4 Table 1 Temperature readings of 4 temperature sensors Temperature (C) Reading-1 Reading-2 Reading-3 Reading-4 25 20 24 23 27 26 22 26 33 34 39 35.5 40 38 43 37 45 46 44 43 47 48 49 46 51 49 51 49 49 50 51 51 6 8 10 12 14 Hint/Self-Study: You may need to find the formula for calculating the standard deviation from internet. Also search for how to add error bars (standard deviation) to a graph/plot