According to the records of a soft drink company, the bottles for their one-liter-sized products contain an average (mean) of 1.01 liters of beverage, with a standard deviation of 0.16 liters. As part of routine quality assurance, a sample of 50 bottles has been taken. The sample mean amount of beverage in these 50 bottles was 0.99 liters. Assuming the company's records are correct, find the probability of observing a sample mean of 0.99 liters or less in a sample of 50 bottles. Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.

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