A recent PwC Supply Global Chain survey indicated that companies that acknowledge the supply chain as a strategic asset achieve 70% higher performance. The Leaders

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A recent PwC Supply Global Chain survey indicated that companies that acknowledge the supply chain as a strategic asset achieve 70% higher performance. The “Leaders” in the survey point to next-generation supply chains, which are fast, flexible, and responsive. They are more concerned with skills that separate a company from the crowd: 51% say differentiating capabilities is the real key to success (pwc. to / VaFpGz). The results are based on a survey of 503 supply chain ­executives in a wide range of industries representing a mix of company sizes from across three global regions: Asia, Europe, and the Americas.
a. Describe the population of interest.
b. Describe the sample that was collected.
c. Describe a parameter of interest.
d. Describe the statistic used to estimate the parameter in ( c).