(22.06) Resistance training is a popular form of conditioning aimed at enhancing
ID: 3316710 • Letter: #
Question
(22.06) Resistance training is a popular form of conditioning aimed at enhancing sports performance and is widely used among high school, college, and professional athletes, although its use for younger athletes is controversial. Researchers obtained a random sample of 4245 patients between the ages of 8 and 30 who were admitted to U. S. emergency rooms with injuries classified by the Consumer Product Safety Commission code "weight-lifting." These injuries were further classified as " accidental" if caused by dropped weight or improper equipment use. Of the 4245 weight-lifting injuries, 1647 were classified as accidental.
What is a 98% confidence interval for the proportion of weight-lifting injuries in this age group that were accidental?
The 98% confidence interval (±± 0.001) is from to
Explanation / Answer
The statistical software output for this problem is:
One sample proportion summary confidence interval:
p : Proportion of successes
Method: Standard-Wald
98% confidence interval results:
Hence,
98% confidence interval will be:
0.371 to 0.405
Proportion Count Total Sample Prop. Std. Err. L. Limit U. Limit p 1647 4245 0.38798587 0.0074791085 0.37058686 0.40538487Related Questions
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