Pregunta: A student sits in her favorite four-legged chair to watch a horror movie. She keeps her feet off the ground at all times and is affected to change drastically from position in the seat. The legs of the chair

A student sits in her favorite four-legged chair to watch a horror movie.
She keeps her feet off the ground at all times and is affected to change
drastically from position in the seat. The legs of the chair are circular in section and
they have a radius of 0.50 ± 0.04 cm. Each leg has a pressure sensor at its base and
you make measurements of the pressures of each leg, on five different occasions during
the movie. Get the following data table:

(Table is divided in first, second, third, fourth, and fifth measuring, and in the different legs A,B,C,D)

Questions:

a) Could it be inferred that, during the film, the student leaned more towards the
front of the seat or on the contrary, to the back of the seat? Or is it not possible to infer anything about it?

Please answer clearly and explain your reasoning.

b) If it is known that the chair weighs half of what the student weighs, determine the best
estimate of girls mass with the given information. Do all the error analysis learned in class.

Answer clearly and explain your reasoning.