The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.912 g and a standard deviation of 0.323 g. The company that produces these cigarettes claims that it has now reduced the amount of nicotine. The supporting evidence consists of a sample of 38 cigarettes with a mean nicotine amount of 0.849 g.

Assuming that the given mean and standard deviationhave NOT changed, find the probability of randomly selecting 38 cigarettes with a mean of 0.849 gor less.

P(M< 0.849 g) =_

Enter your answer as a number accurate to 4 decimal places.