A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 735 hours. A random sample of 26 light bulbs has a mean life of 710 hours. Assume the population is normally distributed and the population standard deviation is 59 hours. At α=0.05, do you have enough evidence to reject the manufacturer's claim? Identify Ho and Ha find the critical value(s) and sketch region calculate the test statistic and add it to the sketch Do you reject the Ho or fail to reject Ha
A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 735 hours. A random sample of 26 light bulbs has a mean life of 710 hours. Assume the population is normally distributed and the population standard deviation is 59 hours. At α=0.05, do you have enough evidence to reject the manufacturer's claim? Identify Ho and Ha find the critical value(s) and sketch region calculate the test statistic and add it to the sketch Do you reject the Ho or fail to reject Ha
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 735 hours. A random sample of 26 light bulbs has a mean life of 710 hours. Assume the population is
Identify Ho and Ha
find the critical value(s) and sketch region
calculate the test statistic and add it to the sketch
Do you reject the Ho or fail to reject Ha
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