Monitors manufactured by TSI Electronics have life spans that have a normal distribution with a variance of 1,690,000 and a mean life span of 17,000 hours. If a monitor is selected at random, find the probability that the life span of the monitor will be more than 14,919 hours. Round your answer to four decimal places.
Monitors manufactured by TSI Electronics have life spans that have a normal distribution with a variance...
Monitors manufactured by TSI Electronics have life spans that have a normal distribution with a variance of 2,250,000 and a mean life span of 13,000 hours. If a monitor is selected at random, find the probability that the life span of the monitor will be more than 14,650 hours. Round your answer to four decimal places.
Monitors manufactured by TSI Electronics have life spans that have a normal distribution with a standard deviation of 1500 hours and a mean life span of 17,000 hours. If a monitor is selected at random, find the probability that the life span of the monitor will be more than 19,099 hours. Round your answer to four decimal places.
Monitors manufactured by TSI Electronics have life spans that have a normal distribution with a standard deviation of 1600 hours and a mean life span of 17,000 hours. If a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,943 hours. Round your answer to four decimal places.
Monitors manufactured by TSI Electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 14,000 hours. If a monitor is selected at random, find the probability that the life span of the monitor will be more than12,920 hours. Round your answer to four decimal places.
Monitors manufactured by TSI Electronics have life spans that have a normal distribution with a standard deviation of 1700 hours and a mean life span of 19,000 hours. If a monitor is selected at random, find the probability that the life span of the monitor will be less than 22,909 hours. Round your answer to four decimal places.
A manufacturer of computer monitors estimates that 4 percent of all the monitors manufactured have a screen defect. Let pd represent the population proportion of all monitors manufactured that have a screen defect. For the sampling distribution of the sample proportion for samples of size 100, μPˆd=0.04. Which of the following is the best interpretation of μPˆd=0.04 ? For all samples of size 100, the mean of all possible sample proportions of monitors manufactured that have a screen defect is...
A quality control expert at Glotech computers wants to test their new monitors. The production manager claims they have a mean life of 85 months with a variance of 49. If the claim is true, what is the probability that the mean monitor life would be greater than 83.8 months in a sample of 121 monitors? Round your answer to four decimal places.
A quality control expert at Glotech computers wants to test their new monitors. The production manager claims they have a mean life of 8383 months with a variance of 100100. If the claim is true, what is the probability that the mean monitor life would differ from the population mean by less than 1.71.7 months in a sample of 8989 monitors? Round your answer to four decimal places.
An electrical firm manufactures light bulbs that have a length life with normal distribution, and mean equal to 800 hours, and a variance of 9. Find the probability that a random sample of 38 light bulbs will have a sample variance S2 greater than 9.97. Find the probability that a random sample of 32 light bulbs will have a sample variance s? of at most 4.2.
A quality control expert at Glotech computers wants to test their new monitors. The production manager claims they have a mean life of 75 months with a standard deviation of 5 months. If the claim is true, what is the probability that the mean monitor life would be less than 74.4 months in a sample of 85 monitors? Round your answer to four decimal places.