A clothing manufacturer traditionally makes sweatshirts from three different fabrics, A,
B and C. Over the years the percentages sold of each fabric are 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 appropriate test to determine whether sales results of the new running suit
are similar to what would be expected given the previous sales history of sweatshirts
made of the three fabrics?
a. Kolmogorov’‘Smirnov test
b. z’‘test to compare proportions
c. Chi’‘square test
d. T’‘test for two means
e. none of the above
An analyst wishing to compare the consumption of ABC ice cream against the four
other leading brands by month for the last three years should probably use
a. a line chart.
b. a pie chart.
c. a bar chart.
d. a pictogram.
e. a stratum chart.
Marketing research emphasizes
a. the definition of marketing problems and issues.