Mathematics, 25.06.2019 07:50 jojomgarcia01
The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.934 g and a standard deviation of 0.295 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 40 cigarettes with a mean nicotine amount of 0.845 g. assuming that the given mean and standard deviation have not changed, find the probability of randomly selecting 40 cigarettes with a mean of 0.845 g or less. p(m < 0.845 g) = enter your answer rounded to 3 decimal places. based on the result above, is it valid to claim that the actual mean amount of nicotine may lower than 0.934 g
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Mathematics, 21.06.2019 21:00
The sum of the first eight terms of an arithmetic progression is 9m + 14. the fifth term of the06 progression is 2m - 6, where m is a constant.given that the first term of the progression is 26,find the value of the common difference, d and thevalue of m.
Answers: 1
Mathematics, 21.06.2019 23:30
Which of these angles are complementary? a. 45o and 45o b. 63o and 117o c. 45o and 135o d. 90o and 45o
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The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.93...
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