For Problem 19.22, determine the probability (assuming normal distribution) that a light...

For Problem 19.22, determine the probability (assuming normal distribution) that a light bulb would have a life expectancy greater than 1000 hours

Problem 19.22:

As an electrical engineer, you have designed a new efficient light bulb. In order to predict its life expectancy, you conducted a series of experiments on 135 of these light bulbs and gathered the following data. Plot the data and calculate the mean and standard deviation.