Use the table to answer the question. Note: Round z-scores to the nearest hundredth and then find the required A values using the table. A manufacturer of light bulbs finds that one light bulb model has a mean life span of 1026 h with a standard deviation of 89 h. What percent of these light bulbs will last as follows? (Round your answers to one decimal place.) (a) at least 950 h (b) between 800 and 890 h %

Use the table to answer the question. Note: Round z-scores to the nearest hundredth and then find the required A values using the table. A manufacturer of light bulbs finds that one light bulb model has a mean life span of 1026 h with a standard deviation of 89 h. What percent of these light bulbs will last as follows? (Round your answers to one decimal place.) (a) at least 950 h (b) between 800 and 890 h %

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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