Research Article

A Mathematical Programming Approach to Brand Efficiency of Smartphones in the US Market

Table 4

Pearson’s correlations for inputs and outputs.

PriceQ1Q2Q3Q4Q5Q6Q7Q8Q9Q10

Price
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10

Note . Q1 = ease of use, Q2 = messaging, Q3 = web browsing, Q4 = display quality, Q5 = voice quality, Q6 = phoning, Q7 = battery life, Q8 = camera image quality, Q9 = camera video quality, and Q10 = portability. Note . Single asterisks () denote significant level at 0.05.