An experiment was designed to study the effect of two factors on the fire-retard ant treatment of fabrics. Factor A is the type of fabric (cotton versus polyester), and factor B corresponds to two...

Extracted text: An experiment was designed to study the effect of two factors on the fire-retard ant treatment of fabrics. Factor A is the type of fabric (cotton versus polyester), and factor B corresponds to two different fire-retar-dant treatments (X and Y). The results from four replications of each combination of the two factors (expressed in terms of the number of inches of a fabric burned after a flame test, with a smaller value indicating a better result) were as follows: Treatment Treatment Fabric Y Fabric X Cotton 39 28 Polyester 46 29 36 31 50 25 31 42 45 45 30 48 For the 0.05 level of significance, answer the following questions: (a) Is there an effect due to fabric? (b) Is there an effect due to fire-retardant treatment? (c) Is there an interaction due to fabric and fire-retardant treatment? (d) Plot graph of average fabric burned for each fabric for each fire-retardant treatment. (e) What can you conclude about the effect of fabric and fire-retardant treatment on the amount of fabric burned? Y 7333