The lifespan of xenon metal halide arc-discharge bulbs for aircraft landing lights is normally distributed with a mean of 2,400 hours an a standard deviation of 570 hours. (a) If a new ballast system shows a mean life of 2,826 hours in a test on a sample of 9 prototype new bulbs, would you conclude that the new lamp's mean life exceeds the current mean life at a = 0.01? Yes No (b) What is the p-value? (Round your answer to 4 decimal places.) p-value
The lifespan of xenon metal halide arc-discharge bulbs for aircraft landing lights is normally distributed with a mean of 2,400 hours an a standard deviation of 570 hours. (a) If a new ballast system shows a mean life of 2,826 hours in a test on a sample of 9 prototype new bulbs, would you conclude that the new lamp's mean life exceeds the current mean life at a = 0.01? Yes No (b) What is the p-value? (Round your answer to 4 decimal places.) p-value
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 31PPS
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