An Experiment to Study the Relationship Between X = Head

question 9

Multiple Choice

An experiment to study the relationship between x = head wind speed (m/s) and y = 100-m sprint time (seconds) resulted in the following summary statistics. ​ n = 20 ​ Calculate a 99% confidence interval for β, the average change in the 100-m finish time associated with a 0.1 (that is, 1 unit) increase in wind speed. Round your answers to four decimal places. ​

• A) (−0.0379, 0.0722)
• B) (0.172, 0.2573)
• C) (0.0402, 0.153)
• D) (0.0438, 0.1615)
• E) (0.0635, 0.1741)

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