The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.907 g and a standard deviation of 0.293 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 35 cigarettes with a mean nicotine amount of 0.848 g. Assuming that the given nean and standard deviation have NOT changed, find the probability of randomly seleting 35 cigarettes with a mean of 0.848 g or less. P(x-bar< 0.848 g) D Enter your answer as a number accurate to 4 decimal places. Based on the result above, is it valid to claim that the amount of nicotine is lower? O No. The probability of obtaining this data is high enough to have been a chance occurrence. O Yes. The probability of this data is unlikely to have occurred by chance alone.

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