A magazine conducted a survey on whether dollar coins or quarters would be left on a busy sidewalk the longest. Theyrecorded the amount of time each coin was left on the sidewalk before being picked up. According to their results the dollar coins remained a mean time of 390 seconds while the mean length of time that the quarters stayed on the sidewalk was 5.75 minutes. Assume that these means are based on samples of fifty 1-dollar coins and forty-five quarters and that the two-samplestandard deviations are 105 seconds and 72 seconds,respectively. Find a 99% confidence interval for the difference between the corresponding means.
A magazine conducted a survey on whether dollar coins or quarters would be left on a busy sidewalk the longest. Theyrecorded the amount of time each coin was left on the sidewalk before being picked up. According to their results the dollar coins remained a mean time of 390 seconds while the mean length of time that the quarters stayed on the sidewalk was 5.75 minutes. Assume that these means are based on samples of fifty 1-dollar coins and forty-five quarters and that the two-samplestandard deviations are 105 seconds and 72 seconds,respectively. Find a 99% confidence interval for the difference between the corresponding means.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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A magazine conducted a survey on whether dollar coins or quarters would be left on a busy sidewalk the longest. Theyrecorded the amount of time each coin was left on the sidewalk before being picked up. According to their results the dollar coins remained a
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