Question: The percentage of protein in a certain brand of dog food is normally distributed random variable with mean 11.2% and standard deviation of 0.06%. The manufacturer would like to state on the package that the product had a protein content of at least x to the 1st , % and no more than x to the 2^nd, %. It wants the statement to be true for 99% of the packages sold. Determine the value of x1 and x2.