Statistics Problems - 10

6/6/2019 Assignment Print View

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1. Award: 0.20 points    

The following sample observations were randomly selected.

x 4 5 3 6 10 y 4 6 5 7 7

Click here for the Excel Data File

1. Fill in the blanks below: (Round your answers to 2 decimal places.)

Sx Sy Coefficient of correlation Coefficient of determination

2. Choose the right option.

The correlation coefficient obtained here indicates correlation between X and Y.

3. Fill in the blanks. (Round your answer to the nearest whole number.)

The coefficient of determination obtained here indicates X accounts for approximately percent of the variation in Y.

References

Worksheet Difficulty: 2 Intermediate Learning Objective: 13-02 Calculate a correlation coefficient to test and interpret the relationship between two variables.

 

x̄

ȳ