Applicants for a particular job, which involves extensive travel
in Spanish speaking countries, must take a
proficiency test in Spanish. The sample data below were obtained in
a study of the relationship between the
numbers of years applicants have studied Spanish (x) and their
score on the test (y).
x 3 2 4 4 4 3 4 5 3 2
y 57 74 72 58 71 63 73 78 75 53
At the 5% significance level, predict the proficiency score for a
person with 5.3 years of
study.
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