Question

Athletes performing in bright sunlight often smear black eye grease under their eyes to reduce glare....

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. This is a matched pairs design. Provided are the 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

SOLVE:

What is the value of the test statistic? (Enter your answer rounded to two decimal places.) ?=

Use Table A and find the ? ‑value of the test. (Enter your answer rounded to three decimal places.) ? ‑value =

Math   Statistics-And-Probability   
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