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The life expectancy of a lung cancer patient treated with a new drug is normally distributed with a mean of 4 years and a standard deviation of 10 months.
A. What is the probability that a randomly selected lung cancer patient will last more than 5 years? _____B. What percentage of lung cancer patients will last between 5 and 6 years? ____C. What percentage of lung cancer patients will last less than 4 years? _____D. What percentage of lung cancer patients will last between 2.5 and 4.5 years? _E. If the drug manufacturer guarantees the drug will be effective for a minimum of 3 years (and will pay for the entire treatment program if the patient does not survive), what percentage of lung cancer patients will have to pay for the treatment? _____
Select from the answers below. Place the correct letter in the blanks above.
A. 10.69% B. 11.51% C. .0796 D. 46.01% E. 88.49%F. 68.9% G. 53.98% H. 0% I. 50% J. 0.06172
A recent study at a local college claimed that the proportion of students who commute more than fifteen miles to school is no more than 25%.
Do the data in the sample represented in the Excel file support his contention at the .05 level of significance?
There are infinitely many prime numbers p of the form 4n+3. In other words, show that there exist infinitely many positive integers, n, such that the number 4n+1 is prime.
In fiscal 1996, the U.S. Agency for International Development provided 238,300 metric tons of corn soy blend (CSB) for development programs and emergency relief in countries throughout the world.
Model Fitness. With any statistical model, we assess the fit: Does the model accurately depict the truth? Explain how one of the following helps assess the "fitness" of the mean.
(A) At the 0.05 level of significance, use the six step critical value approach to hypothesis testing to try and prove that the 2004 proportion has increased. (B) Use the 5 step p-value approach. Interpret the meaning of the p value.
Suppose a simple random sample of size n = 34 is obtained from a population with μ = 30 and σ = 4. Is the sampling distribution of x approximately normal.
A major department store chain is planning to open a store in a new city. Five cities are being considered: Boston, Atlanta, Dallas, Cleveland, and Los Angeles.
An olympic archer is able to hit the bull's-eye 70% of the time. Assume each shot is independent of the others. If she shoots 6 arrows, what is the probablitly that she never misses?
The Dean is hanging his head in shame. He realizes his failings in designing an adequate research design to assess the effects of the move on majors and has revised the proposal.
Suppose you were trying to decide which of two machines to purchase. Furthermore, suppose the length to which the machines cut a particular product part was important. If both machines produced parts that had the same average length, what other co..
Determine whether the sentence is statement. Please justify. Write a negation of the inequality.Do not use a slash sign. Answer must be written as an equality.
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