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Clearly explain the relationship between confidence level and the width of the confidence interval. Illustrate how changes in the confidence interval will affect the probability of an event occurring, please give examples.
Statistics and Probability, Statistics
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Assume that the critic finds that 50 percent of the movies have positive comments about the plot, 50 percent have positive comments about the acting, and 30 percent were not given positive comments about either plot or a ...
A researcher is planning to a silvicultural study using 3 different fertilizers on 3 adjacent plots. How many ways can the 3 plots be arranged if there are 18 fertilizers to choose from?
A random sample of 86 eighth grade? students' scores on a national mathematics assessment test has a mean score of 292. This test result prompts a state school administrator to declare that the mean score for the? state' ...
1 Table #10.1.6 contains the value of the house and the amount of rental income in a year that the house brings in ("Capital and rental," 2013). Create a scatter plot and find a regression equation between house value an ...
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Assume that the class consists of 45 percent freshmen, 20 percent sophomores, 20 percent juniors, and 15 percent seniors. Assume further that 50 percent of the freshmen, 50 percent of the sophomores, 25 percent of the ju ...
Explain how each of the following situations would affect interest rate and consequently, the equity market. a) Sudden increase of capital expenditure by the businesses b) Decrease of household savings in the market c) S ...
How does a market-maker decide the edge (offset) required to perform an options trade? Explain why this edge would be different for options of different strikes as well as for option combinations?
Assume that when adults with smartphones are randomly? selected, 42?% use them in meetings or classes. If 7 adult smartphone users are randomly? selected, find the probability that at least 5 of them use their smartphone ...
Calculate the cash and accounting break even point. selling price $745, Variable cost $445 extra expense of $170,000 per on rent, $160,000 per year on utility plus additional of initial outlay of $120,000 in furniture (4 ...
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