A Clothing Manufacturer Traditionally Makes Sweatshirts from Three Different Fabrics

Multiple Choice

A clothing manufacturer traditionally makes sweatshirts from three different fabrics: A,B and C.Over the years,the percentages sold of each fabric were 50,35,and 15,respectively.Recently,the manufacturer began producing running suits from the same three fabrics.During the first three months of production,the company received orders for 6,500 suits made from fabric A,3,400 from fabric B,and 2,700 from fabric C.What is the value of the test statistic useful for determining how well the pattern of sales (by fabric type) of the new running suit corresponds to the expected pattern?

A) 136.21
B) 584.81
C) 0.973
D) 422.13
E) None of these are correct.