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Heart failure is due to either natural occurrences (87%) or outside factors (13%). Outside factors are related to induced substances or foreign objects. Natural occurrences are caused by arterial blockage, disease, and infection. Suppose that 20 patients will visit an emergency room with heart failure. Assume that causes of heart failure between individuals are independent.
(a) What is the probability that three individuals have conditions caused by outside factors?(b) What is the probability that three or more individuals have conditions caused by outside factors?(c) What are the mean and standard deviation of the number of individuals with conditions caused by outside factors?
Give an example of how Regression Analysis can be used in your work to make a business decision. Give the dependent and independent variables.
what is the equation that predicts mortgage amount from interest rate? Compute the slope of the straight line. compute the y-intercept of the straight line.
At the .01 significance level, is there a relationship between job pressure and age?
A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it.
Determine the sum of these probabilities , and why is the number less than 1
CHris Turlock owns and manages a small business in San Francisco, California. The business provides breakfast and brunch food, via carts parked along sidewalks, to people in the business district of the city.
Determine percent of the garages take between 29 hours and 34 hours to erect? Determine percent of garages take 28.7 hours or less to erect?
If the average daily intake among 25-34-year-old males in the general population is 15 g, then, using a significance level of .05, test the hypothesis that the intake of linoleic acid in this group is lower than that of the general population. Als..
Suppose n progeny are to be examined, and let P^ be the sample proportion of purple-owered plants. It might happen, by chance, P^ that would be closer to 1/2 than to 9/16. Find the probability that this misleading event would occur if:
The heights, in feet, of the five tallest buildings in four large cities are compared. What is the critical value if the level of significance is 0.10?
Probability histogran curve of percentage of (P)z
A number x is formed by choosing six digits in order, each being a 9 or a 1 and equally likely. Describe the sample space and count the number of sample points it contains.
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