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In recent years there had been several studies on the effects of computer on people who spent substantia amount of time staring at computer monitors. Image quality of monitors, among other things, produce eye strain and affects work efficiency. An experiment in which image quality (x) and average time (y in minutes) spent by a group of subjects of subjects to read certain passages were recorded, as shown in the table below. Variables A CDEF G H 1 J K M 4.30 4.55 5.55 5.65 5.95 6.30 6.45 6.45 6.49 6.55 Image quality Time 6.75 6.98 7.01 8.00 8.30 7.80 7.25 7.70 7.50 7.60 7.20 7.15 7.00 8.00 7.40 6.95 How long is the expected use of computer if the image quality is 8.25? Select one: a. 6.81 minutes b. 7.12 minutes C 8.3 minutes d. 5.75 minutes no correct answer

In recent years there had been several studies on the effects of computer on people who spent substantia amount of time staring at computer monitors. Image quality of monitors, among other things, produce eye strain and affects work efficiency. An experiment in which image quality (x) and average time (y in minutes) spent by a group of subjects of subjects to read certain passages were recorded, as shown in the table below. Variables A CDEF G H 1 J K M 4.30 4.55 5.55 5.65 5.95 6.30 6.45 6.45 6.49 6.55 Image quality Time 6.75 6.98 7.01 8.00 8.30 7.80 7.25 7.70 7.50 7.60 7.20 7.15 7.00 8.00 7.40 6.95 How long is the expected use of computer if the image quality is 8.25? Select one: a. 6.81 minutes b. 7.12 minutes C 8.3 minutes d. 5.75 minutes no correct answer

Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 31EQ
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In recent years there had been several studies on the effects of computer on people who spent substantial amount of time staring at computer monitors. Image quality of monitors, among other things, produce eye strain and affects work efficiency. An experiment in which image quality (x) and average time (y in minutes) spent by a group of subjects of subjects to read certain passages were recorded, as shown in the table below. в с D E F G Variables A H 1 J K M 4.30 4.55 5.55 5.65 5.95 6.30 6.45 6.45 6.49 6.55 Image quality Time 6.75 6.98 7.01 8.00 8.30 7.80 7.25 7.70 7.50 7.60 7.20 7.15 7.00 8.00 7.40 6.95 How long is the expected use of computer if the image quality is 8.25? Select one: a. 6.81 minutes b. 7.12 minutes c. 8.3 minutes d. 5.75 minutes e. no correct answer
Transcribed Image Text:In recent years there had been several studies on the effects of computer on people who spent substantial amount of time staring at computer monitors. Image quality of monitors, among other things, produce eye strain and affects work efficiency. An experiment in which image quality (x) and average time (y in minutes) spent by a group of subjects of subjects to read certain passages were recorded, as shown in the table below. в с D E F G Variables A H 1 J K M 4.30 4.55 5.55 5.65 5.95 6.30 6.45 6.45 6.49 6.55 Image quality Time 6.75 6.98 7.01 8.00 8.30 7.80 7.25 7.70 7.50 7.60 7.20 7.15 7.00 8.00 7.40 6.95 How long is the expected use of computer if the image quality is 8.25? Select one: a. 6.81 minutes b. 7.12 minutes c. 8.3 minutes d. 5.75 minutes e. no correct answer
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