Texts:
20. The following information on age and number of hours exercised was gathered about 13 members at a small gym.
Age: 25, 36, 44, 22, 57, 25, 43, 19, 40, 44, 6.5, 2, 5, 4, 4.5, 3, 2.5, 6.5
Hours: 6, 5, 4
a) Create a scatterplot using technology.
b) Determine the correlation coefficient.
c) Describe the type of relation and the strength of the relation.
d) Does the age of a gym member affect the number of hours that a member exercises per week?
e) How reliable and valid do you think the information is? Explain.
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