A set of 50 observations are supposed to have come from an exponential distribution with the pdf

?1exp(?x/?)for0

and the data has been conveniently summarized into a frequency table with 4 categories, as given below. Since the parameter?is unknown, it was estimated by its Maximum Likelihood Estimate asx? = 0.9184. Test the null hypothesis that the data actually comes from such an exponential distribution. Use?= 0.05:

A set of 50 observations are supposed to have come from an exponential distribution with the pdf 1 emp(m/) for 0