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John owns a computer repair service. For each computer, he charges $50 plus $45 per hour of work. A linear equation that expresses the total amount of money John earns per computer is y=50+45x. What are the independent and dependent variables? What is the y-intercept and the slope?
For each of the following examples, state whether the chi-square goodness-of-fit test or the chi-square test for independence is appropriate.
If a satellite moves with the constant speed in a perfectly circular orbit around the earth, what is the direction of the acceleration of the satellite.
Highway and City The figure shows the relationship between the number of kilometers per liter on the highway and that in the city for some cars.
a. Construct a frequency distribution to display these data. b. What are the midpoints of the class intervals?
Use the same information about Jeannie in the above problem. What travel time corresponds to the 96th percentile of Jeannie's trips to the airport. Round your final answer to the nearest minute, then input that whole number below.
Why can't India be a World-Class Player in Manufacturing Industry as it is in IT & BPO Sectors? and We Need Drinking Water and Not Coke & Pepsi in Rural India.
The method of least squares can be used to fit curves to data. Using the method of least squares, find the normal equations that provide least squares estimates of α, β, and γ when fitting a quadratic curve of the form y = a + bx + γ x2 to paired ..
Calculate the centerline and control limits for the X‾- and s-charts.- Estimate the process mean and standard deviation, assuming the process to be in control.
suppose that you want to test for a difference in proportion between two groups. group 1 has 80 respondents and 40 of
Suppose that a X2 test of independence at the level of significance 0.05 is to be applied to the elements of a 2 x 2 contingency table containing 2n observation
Statistical procedures used to analyze test items, including, but not limited to an index of an item's difficulty and an index of an item's discrimination.
the project manger of a software company requested an analysis of past performance. the assigned analyst compared
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