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Look around your living space or current surroundings, and find a categorical variable for which there are at least three categories and for which you can collect at least 20 observations (example: color of the shirts in your closet). Collect the data.
a. Draw a pie chart for your data.
b. Draw a bar graph for your data.
c. Is one of the pictures more informative than the other? Explain. (Your answer may depend on the variable you chose.)
Bob's golf score at his local course follows the normal distribution with a mean of 92.1 and a standard deviation of 3.8. What is the probability that the score on his next round of golf will be between 82 and 89?
Suppose we have two bowls full of candies. Each bowl contains four different flavours of candy - grape (which are purple), lemon (which are yellow), cherry (which are red) and raspberry (which are also red). (a) What is the probability that the fi..
Internet and the articles database in the library for a real-life illustration of simulation. For hint, type the word "Simulation" followed by a topic of interest to you. Carefully review the search item.
Find and write out the regression line - What is the Coefficient of Determination? What is the Coefficient of Determination adjusted for degrees of freedom?
Prepare a line graph comparing the linear trend predictions against the original data and what are the forecasts for each of the first six months in 2011 using this technique?
What would be your answer if emergencies are twice as likely to arise in the northern two-mile stretch than in the southern two-mile stretch (but are uniformly distributed within each two-mile stretch)? Find the numerical solution to this part..
1. Assume 50 random samples of the same sample size are taken from a population, and a 90% confidence interval is constructed from each sample. How many of the intervals would you expect to contain the true population mean?
If a Pie Chart were constructed for the weights of the salmon, what would be the measure of the central angle for the class weighing 200-249 grams?
IListed below is the number of movie tickets sold at the Library Cinema-Complex, in thousands, for the period from 2001 to 2013. Compute a five-year weighted moving average using weights of 0.1, 0.15, 0.25, 0.12, and 0.38, respectively. Describe the ..
Significant difference between their mean levels of wages?
Water specimens contain nitrates, a solution that is dropped into the water will cause the specimen to turn red 95% of the time. When used on water specimens without nitrates, the solution turns the water red 10% of the time. Past experience in the l..
Write about 3-5 sentences describing the results of the seasonal adjustment. Pay particular attention to the scales of the graphs in making your interpretation.
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