Please could you explain how I solve part D,, I need an explanation not only the answer.
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Please could you explain how I solve part D,, I need an explanation not only the answer.
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(b) Use the Empirical Rule to calculate estimates of tolerance intervals containing 68.26 percent, 95.44 percent, and 99.73 percent of all possible bank customer waiting times. (Round your answers to 3 decimal places. Negative amounts should be indicated by a minus sign.) [x(bar) ± s] [x(bar) + 2s] [x(bar) ± 3s] [ Yes 3.256 0.637 (1.982) (c) Does the estimate of a tolerance interval containing 68.26 percent of all waiting times provide evidence that at least two-thirds of all customers will have to wait less than 9 minutes for service? because the upper limit of the 8.494 11.113] 13.732] 68.26 % interval is less than 9 minutes. (b) Use the Empirical Rule to calculate estimates of tolerance intervals containing 68.26 percent, 95.44 percent, and 99.73 percent of all possible bank customer waiting times. (Round your answers to 3 decimal places. Negative amounts should be indicated by a minus sign.) [x(bar) ± s] [x(bar) + 2s] [x(bar) ± 3s] [ Yes 3.256 0.637 (1.982) (c) Does the estimate of a tolerance interval containing 68.26 percent of all waiting times provide evidence that at least two-thirds of all customers will have to wait less than 9 minutes for service? because the upper limit of the 8.494 11.113] 13.732] 68.26 % interval is less than 9 minutes.
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Related Book For
Business Statistics in Practice
ISBN: 978-0077404741
6th edition
Authors: Bruce Bowerman, Richard O'Connell
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