### The Effectiveness of Eye Grease in Reducing Glare for AthletesAthletes performing in bright sunlight often apply black eye grease to reduce glare. A study explored whether this eye grease improves sensitivity to contrast, which is associated with better vision. In this study, 16 student subjects underwent a sensitivity test to contrast after spending three hours facing bright sunlight, both with and without eye grease. Greater sensitivity implies improved vision, as glare typically reduces sensitivity to contrast. This was a matched pairs design experiment. The table below shows the differences in sensitivity scores, calculated as eye grease minus no eye grease.#### Differences in Sensitivity, With Eye Grease Minus Without Eye Grease| 0.07 | 0.64 | -0.12 | -0.05 | -0.18 | 0.14 | -0.16 | 0.03 ||------|------|-------|-------|-------|------|-------|------|| 0.05 | 0.02 | 0.43 | 0.24 | -0.11 | 0.28 | 0.05 | 0.29 |To analyze the complete data set, download using your preferred software format:- [Excel](#)- [Minitab14-18](#)- [Minitab18+](#)- [JMP](#)- [SPSS](#)- [TI](#)- [R](#)- [Mac-TXT](#)- [PC-TXT](#)- [CSV](#)- [CrunchIt!](#)#### Confidence Interval EstimationTo determine how much more sensitive to contrast athletes are with eye grease compared to without, calculate a 99% confidence interval. Enter your answers rounded to four decimal places.- **Lower bound =** [input field]- **Upper bound =** [input field]

Step-by-step procedure to obtain the 99% confidence interval using the MINITAB software is as…

Athletes performing in bright sunlight often smear black eye grease under their eyes to reduce glare. Does eye grease work? In one study, 16 student subjects took a test of sensitivity to contrast after three hours facing into bright sun, both with and without eye grease. Greater sensitivity to contrast improves vision and glare reduces sensitivity to contrast. This is a matched pairs design. The differences in sensitivity, with eye grease minus without eye grease is given. Differences in sensitivity, with eye grease minus without eye grease 0.07 0.64 -0.12 -0.05 -0.18 0.14 -0.16 0.03 0.05 0.02 0.43 0.24 -0.11 0.28 0.05 0.29 To access the complete data set, click the link for your preferred software format: Excel Minitab14-18 Minitab18+ JMP SPSS TI R Mac-TXT PC-TXT CSV CrunchIt! How much more sensitive to contrast are athletes with eye grease than without eye grease? Give a 99% confidence interval to answer this question. (Enter your answers rounded to four decimal places.)

Athletes performing in bright sunlight often smear black eye grease under their eyes to reduce glare. Does eye grease work? In one study, 16 student subjects took a test of sensitivity to contrast after three hours facing into bright sun, both with and without eye grease. Greater sensitivity to contrast improves vision and glare reduces sensitivity to contrast. This is a matched pairs design. The differences in sensitivity, with eye grease minus without eye grease is given. Differences in sensitivity, with eye grease minus without eye grease 0.07 0.64 -0.12 -0.05 -0.18 0.14 -0.16 0.03 0.05 0.02 0.43 0.24 -0.11 0.28 0.05 0.29 To access the complete data set, click the link for your preferred software format: Excel Minitab14-18 Minitab18+ JMP SPSS TI R Mac-TXT PC-TXT CSV CrunchIt! How much more sensitive to contrast are athletes with eye grease than without eye grease? Give a 99% confidence interval to answer this question. (Enter your answers rounded to four decimal places.)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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