The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.933g and a standard deviation of 0.301g. The company that produces these cigarettes claims that it has now reduced the amount of nicotine. The supporting evidence consists of a sample of 43 cigarettes with a mean nicotine amount of 0.869g. Assuming that the given mean and standard deviation have not changed, find the probability of randomly selecting 43 cigarettes with a mean of 0.869g or less P(M<0.869g)

all group life insurance is term insurance. actually it is annual renewable term and it is rated on the average age and claims experience of the entire group, which is called "experience rating." remember, this type of insurance has a 31-day grace period and is convertible to whole life upon leaving employment. a contributory group plan requires that both the employer and the employees pay part of the premium. at least 75% of those eligible must participate, so the group is sure to get most of the healthy employees as well as those that are sick.

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