Food samples were measured for the monitoring of the moisture content. The following results were released: 3.25%, 4.15%, 3.74%, 4.30%, 4.86%, 4.65%, and 4.45%. Is there any gross error in the result...

Extracted text: Food samples were measured for the monitoring of the moisture content. The following results were released: 3.25%, 4.15%, 3.74%, 4.30%, 4.86%, 4.65%, and 4.45%. Is there any gross error in the result obtained? Calculate also for the mean, standard deviation, relative standard deviation in ppt and confidence interval at 95% confidence level.