Help with calculations and questions.

Data Measured value of the known resistor, g, in ohms: 20 (2 Approximate setting of the power supply in volts: 2 V Value of the standard cell, IVE\EMF of Old Battery Trial Number Length of wire X u {cm} 1 79 2 79.1 3 79.5 4 79.6 5 79.9 6 79.8 Average 7948333333 Standard Deviation 0.365604522 EMF of Daniel Cell Trial Number Length of wire X u (cm) 1 55 2 55.2 3 55.3 4 55.5 5 56 6 56.1 Average 55.51666667 Standard Deviation 0444597196 Internal Resistance of New Battery Trial Number Length of wire X' u (cm) 1 75.6 2 75.7 3 75.8 4 75.2 5 75.3 6 75.5 Average 75.51666667 Standard Deviation 0.231660671 Internal Resistance of Old Battery Trial Number Length of wire X' u (cm) 1 67.2 2 68.4 3 68.5 4 68.7 5 68.9 6 68.8 Average 68.41666667 Standard Deviation 0.624232863 Internal Resistance of Daniel Cell Trial Number Length of wire X' u (cm) 1 13.6 2 13.7 3 13.5 4 13.8 5 13.9 6 14 Average 13.75 Standard Deviation 0.187082869 Anal is: 1) For each set of measurement of the length of the wire where the bridge is balanced, find the average value of x and its standard deviation. {USED EXCEL ABOVE) 2) Using equation (9) of the lab manual and the average values ofmand xu, calculate the emfs of the good battery, the bad battery, and the Daniel cell. 3) Using equation (14) of your lab manual and the average values of mand xu, calculate the internal resistance of the good battery, the bad battery, and the Daniel cell. I 4) Based on equation {9} of your lab manual, the uncertainty in Eu is given by {assuming no uncertainty is in the standard cell gm) Calculate the uncertainties in the emfs of the good battery, the bad battery, and the Daniel cell. 5) Based on equation (14} of your lab manual, the uncertainty in mis given by (assuming no uncertainty in the known resistor 5k) Calculate the uncertainties in the internal resistances of the good battery, the bad battery, and the Daniel cell. Questions: 1) What are the emfs and internal resistance of the new battery versus the old battery? 2) In terms of the emf and internal resistance, what happens to a new battery as it gets "used up\"? 3) Do you expect the Daniel cell to be a viable commercial battery? Explain