An engineer wants to assess the effects of the metal type and sintering time on the compressive strength of the metal. Four (4) sintering times are considered as well as 2 metal types. The compressive strength of 4 samples of metal based on each combination of sintering time and metal type was assessed. The data is normally distributed. The treatment sum of squares was calculated to be 46.627. a) A partially completed table for this two-way ANOVA is shown below. Complete the table. (Round off each calculation to 3 decimal places. DO NOT ROUND OFF VALUES OBTAINED FROM THE STATISTICAL TABLES): Source SS df MS Metal Types Sintering Time 10.571 Metal Types*Sintering Time 4.507 Error Total 62.341 31 b) State the hypotheses concerning the effect of the sintering time on the compressive strength in terms of the parameters of the statistical model that would be fitted to analyse the data