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During 2007, sales of new, privately owned homes in the total United States and in the western states were broken down into price categories as follows: Source:
Bureau of the Census, Statistical Abstract of the United States 2009, p. 595.
6 3 23
4 3 455
1 3
1 3 8
a. From this display, is it possible to determine the exact values in the original data? If so, list the data values. If not, provide a set of data that could have led to this display.
b. Interpret the numbers in the leftmost column of the output.
a genetic experiment involving peas yielded one sample of offspring consisting of 426 green peas and 145 yellow peas.
Given f(x,y)=x3+3xy2-3x2-3y2+4. Find all critical points of f and find extreme values (maxima and minima) and saddle points of f.
problem one the manager of a catering company is using the number of people in the party to predict the cost of the
The following sample data were obtained from three populations that did not follow a normal distribution. Compute the value of the test stastic. What is your decision on the null hypothesis?
What is the sensitivity and specificity of the test? Suppose that 1 out of 500 infants are born with Down's syndrome.
The joint cumulative distribution function for (X, Y) is given by F(x, y) = ( 1 - e-x/ID - e-y/l + e-lx+SyJ/I0)/10,001 (x)I10,oodY).
a) Draw the scatter diagram. Does it appear that x and y are related? If so, how? b) Test to determine whether there is evidence of a linear relationship.
What is the hypothesis being tested here? What are Ho and Ha? What is the name of the test you will run? Run the appropriate SPSS test and include the SPSS output here
players a and b play a series of games that ends as soon as one side has won two more games than the other side. on
In a recent year, 10% of all luxury cars sold were black. If 25cars of that year and type are randomly selected, find the following probabilities.(a) At least five cars are black.
Operators are to answer telephone calls from customers in an average time of 0.1 minute or less, and either respond to or refer to the proper department within 0.5 minute.
At one university, students are given z-scores at the end of the semester rather than the traditional GPAs. The mean and standard deviation of all students’ cumulative GPAs, on which the z-scores are based, are 2.7 and 0.5 respectively.
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