Determine variation in price from one processor to another

Reference no: EM131810928

Question: How are prices set for computer processor chips? At one time, the frequency was a good indicator of the processing speed; however, more recently manufacturers have developed alternative ways to deliver computing power because a high frequency tends to lead to overconsumption of power. Consider the multiple regression analysis in Table 12.5.2 to explain the price of eight chips from the two major manufacturers Intel (i3, i5, i7, i8) and AMD (Athlon and Phenol) based on their performance (as measured by the World Bench score, where higher numbers are better), their frequency (gigahertz, or billions of cycles per second), and their power consumption (when idling, in watts).34

a. Approximately how much of the variation in price from one processor to another can be explained by the frequency, the power consumption, and the benchmark score?

b. Have frequency, power, and benchmark score taken together explained a significant proportion of the variability in price? How do you know?

c. Which, if any, of frequency, power, and benchmark score has a significant effect on price while controlling for the two others?

d. Find the predicted value of price and the residual value for the Phenol II X4 945 processor, given the tits price is $140, its frequency is 3 gigahertz, its power is 98.1 watts, and its World Bench score is 110.

e. What exactly do the regression coefficient 22.80 for the World Bench benchmark test and its confidence interval tell you?

f. Approximately how accurately does the regression equation match the actual prices of these eight processor chips?

g. Write a paragraph summarizing what you can learn about the pricing structure of computer processors from this multiple regression analysis.

Reference no: EM131810928

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