A study was conducted to estimate hospital costs for car accident victims who wore seat belts. Suppose that 46 randomly selected cases had an average of $15150 and a standard deviation of $8500. If the average hospital costs for those that did not wear seatbelts was $19000, construct a 90% confidence interval to see if the average costs are significantly different
A study was conducted to estimate hospital costs for car accident victims who wore seat belts. Suppose that 46 randomly selected cases had an average of $15150 and a standard deviation of $8500. If the average hospital costs for those that did not wear seatbelts was $19000, construct a 90% confidence interval to see if the average costs are significantly different
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A study was conducted to estimate hospital costs for car accident victims who wore
seat belts. Suppose that 46 randomly selected cases had an average of $15150
and a standard deviation of $8500. If the average hospital costs for those that did
not wear seatbelts was $19000, construct a 90% confidence interval to see if the
average costs are significantly different.
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