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This week, a very large running race (5K) occured in Denver. The times were normally distributed, with a mean of 22.69 minutes and a standard deviation of 2.66 minutes.
Report your answers accurate to 2 decimals
a. What percent of runners took 21.07 minutes or less to complete the race? %
b. What time in minutes is the cutoff for the fastest 7.48 %? Minutes
c. What percent of runners took more than 17.99 minutes to complete the race?%
in a game of chance a number of draws are made with replacement from a box of tickets 500 of these tickets are labeled
Prepare a short letter to the manufacturing manager at Dragon Wood Furniture discussing the effectiveness of the sampling process that her company is using.
We use the empirical rule to analyze data for samples of size 40 drawn from a population with a mean of 70 and a standard deviation of 9.
1. A business research topic. Strengthen and improve initial proposal.2. A brief literature review of the research topic. Produce 2 to 3 pages on background information on your research topic.
a casino gambler assums the dice he uses are fair. an investigator recorded the outcomes of 600 rolls of such a
Suppose that 0.6 of the present 25,000 vehicle occupants killed in collisions were not wearing seat belts. There are about 170 million registered cars and trucks on the highway today.
population = 450) will not survive. It is estimated that there is a 70% chance the Chinese government will go ahead with the building project. What is the probability of the species' survival?
a) Name all the explanatory and response variables in this study.
What is the probability of actually having lung cancer if an adult tests positive for lung cancer?
Data generated by software. The following 20 observations on Y and X were generated by a computer program.
lester hollar is vice president for human resources for a large manufacturing company. in recent years he has noticed
Students voluntarily join groups based on how often the groups will meet. The groups are designated as meeting weekly, meeting only before exams.
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