Question: A researcher wonders if there is a correlation between visual acuity (measured on a scale of 1 to 10, where 10 represents better vision) and

A researcher wonders if there is a correlation between visual acuity (measured on a scale of 1 to 10, where 10 represents better vision) and the number of accidents. It draws a random sample and obtains the following results:

Visual acuity Number of accidents

2 6

3 6

3 5

6 4

7 4

8 3

9 4

9 3

a. Calculate the Pearson correlation.

b. Perform the hypothesis test at the 0.05 level by making the necessary calculations.

c. Check these calculations using the SPSS software.

d. Interpret your results.

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