It takes a while for new factory workers to master a complex assembly process. During the first month new employees work,
the company tracks the number of days they have been on the job and the length of time it takes them to complete an assembly. The correlation is most likely to be
A) exactly -1.0 B) exactly +1.0 C) near +0.6 D) near 0 E) near -0.6
Question 2
Music and grades (True Story) A couple of years ago, a local newspaper published research results claiming a positive association between the number of years high school children had taken instrumental music lessons
and their performances in school (GPA).
a. What does positive association mean in this context?
b. A group of parents then went to the School Board demanding more funding for music programs as a way to improve student chances for academic success in high school. As a statistician, do you agree or disagree with their reasoning? Explain briefly.
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Color mixtures of refracted light—additive process.
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