USE EXCEL or R software The average life expectancy of a car

USE EXCEL or R software

The average life expectancy of a car is modeled as an exponential distribution. Use X as the mileage in 1000s of miles. The average life will be 10.

1. use a sample size of n=10 show that the sample mean follows normal distribution. Compare results to the central limit theorem ( use Goodness of Fit test, probability plot, or historgram)

The exponential distribution is represented as

Solution