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Graphs in the news. Find a bar graph of categorical data from a newspaper, a magazine, or the Internet.
a) Is the graph clearly labeled?
b) Does it violate the area principle?
c) Does the accompanying article tell the W s of the variable?
d) Do you think the article correctly interprets the data? Explain.
Refer to the previous exercise. The researchers in this study also measured α1-acid glycoprotein (AGP). This protein is similar to CRP in that it is an indicator of infection.
Facebook reports that 70% of their users are from outside the United States and that 50% of their users log on to Facebook every day. Suppose that 20% of their users are United States users who log on every day.
What is the probability that a candidate is over 60 and female? Given that the candidate is male, what is the probability he is less than 60? Given that the person is over 60, what is the probability the person is female?
a bank estimated the average amount of money withdrawn from its atm machines over weekends exceeds 150 per customer
Historically, my HRV fleet averaged 40,000 miles between breakdowns with a 8000 mile standard deviation. I implemented Continuous Improvement teams to research better inspection methods and after the kaizen, I sampled, randomly 30 HRV cars and found ..
Three couples attend a dinner. Each of the six people chooses randomly a seat at a round table. What is the probability that no couple sits together?
List the eight phases of development of a canal system. Discuss the possible costs incurred by the canal owner, the canal users (shippers), and the surrounding community at each phase of developing this engineering system.
a construction zone has a posted speed limit of 40 miles per hour. the speeds of vehicles passing through this
Suppose you forecast that the Swiss franc will appreciate by 3 percent over the next year, but you realize that there is much uncertainty surrounding your forecast.
If the population standard deviation σ= 25, what is the required minimum sample size to construct a 90% confidence level for the population mean with an allowable error of ± 3, using Z0.05=1.645?
using the december follow-up data listed below is there a significant difference between school a children and school b
Mmen will have a heart attack in the next 5 years. How large a sample would we need to have an 80% chance of finding a significant difference if the true rate of heart disease in this group is 13%?
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