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This problem is a review of your knowledge of expressing fractions. Let's say we have 40 students enrolled in a Stat 200 class: 1/5 live outside the U.S., 25% have a slow internet connection, and 12 are under age 30. Write all the ages on separate pieces of paper, put them in a hat and blindly draw one out, what are the chances (probability) that age would be under 30 years?
Given same values n=20, p=0.6, and x=17, calculate probability of x successes in n independent trails of experiment.
A particular medical operation proves fatal in 1% of the cases. Find an approximation to the probability that there will be at least 2 fatalities in 200 operations.
How does globalization help improve the lives of people throughout the world? Do they have more access to goods and information because of globalization.
Linear programming problems. Computethe following linear programming problem. Among which of the following points (X,Y) is feasible.
a production process produces 90 non-defective parts. a sample of 10 parts from the production process is selected.a.
This problem related to Basic Statistics and it is about a study on the average wages of a fast food restaurant worker. The problem is about picking up a random worker whose salary is above the average wage
Construct a hypothesis test to determine whether the average weight of a Smoky Bear moving van is more that 12,000 lb. Us a 5% level of significance.
An independent researcher has decided to study variations in TV viewing habits among three American cities. She has managed to randomly sample households in Chicago, Atlanta, and Minneapolis and gather data on the daily "on" times for households o..
The director of research and development is testing a new medicine. She wants to know if there is evidence at the 0.05 level that the medicine
The management training institution proposes to test the effectiveness of the three methods by comparing two methods at a time, using a paired-t test. Explain why this is a poor procedure.
What is the standard error of the difference between the means?
the inside diameter of a randomly selected piston ring is a random variable with mean value 12 cm and standard
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