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Distribution of cholesterol levels in teenage boys is approximately normal with a mean of 170 and a standard deviation of 30. Levels above 200 warrant attention. If 95 teenage boys are examined. How many would you expect to have cholesterol levels greater than 225.
Using a three month moving average, what would the forecast and MAD have been for July? Which forecasting method would you recommend? Why?
The mean of a standard normal probability distribution.
A die is rolled 60 times. An "ace" is the side with one dot. Use the normal approximation to estiate the chance of getting exactly 12 aces.
A study was conducted to determine if there was a relationship between the prices a non-member of a club paid for various publications and the prices that a member paid for the same publications. The data gathered is shown below.
The probability of Toyota building a new production plant is 70% and the probability of GM building a new one is 50%. The following are the probabilities associated with the countries Toyota would build a new plant:
Using classical methods discussed in class, try to estimate the probability of winning.
The 7th degree polynomial x^7 - 3x^6 - 7x^4 + 21x^3 - 8x + 24 has a factor (x - 3). Divide x^7 - 3x^6 - 7x^4 + 21x^3 - 8x + 24 by x - 3 and thus:
If 30 Samples of 100 items are tested for nonconformity, and 95 of the 3000 items are defective, find the upper and lower control limits for a p chart.
Consider how you might apply radical expressions to your daily life. Explain this application, and discuss what the equation might be.
What is the optimal strategy for producing 500 tons of newsprint pulp, 600 tons of packaging pulp, and 300 tons of print stock quality pulp at minimum cost?
Find a 95% confidence interval for the population mean concentration of uric acid in this patient's blood. What is the margin of error?
In order that the sample proportion and the population proportion not differ by more than 0.05 with 95% level of confidence, what sample size should be used?
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