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Effect of Fathers Playing Video Games on Children The figure shows a scatterplot with a regression line. The data are for 40 schools. The predictor is the percentage of fathers who play video games. The response is the percentage of those fathers' offspring who are addicted to video games.
a. Explain what the trend shows.
b. Use the regression equation to predict the percentage of children who play video games, assuming that 30% of fathers play video games. Use 30, not 0.30.
For a given line of best fit, you compute that r = -0.7204 using n = 8 data points, and the critical value is = 0.707. Can the line be used for prediction? Why?
The regression equation. The equation of a least-squares regression line is y = 12 + 6x.- What is the value of y for x = 5?- If x increases by one unit, what is the corresponding increase in y?
1. in quebec 90 percent of the population subscribes to the roman catholic religion. in a random sample of 8 quebecois
la magnet schools will accept students whose iq scores are in the 99th percentile only. if iq scores have a normal
Ancient air The composition of the earth's atmosphere may have changed over time. To try to discover the nature of the atmosphere long ago.
A machine manufactures tires with a tread thickness that is normally distributed with mean 10 millimeters (mm) and standard deviation 2 mm.
How can we take this "chart" and use it to find the Regression Equation? What is the equation?
Given the following raw scores, calculate the following values: Range, Variance and Standard Deviation, show your calculations: Scores: 9, 7, 8, 4, 8, 8,7, 8, 9, 6, 3
Many vehicles used in space travel are constructed with redundant systems to protect the flight crew and their equipment. Find the probability that this shuttle component functions successfully if n = 2.
Determine the correlatins between pairs of all interval variables (i,e., absences with PE, PE with math, math with writing) How much of the math grade can be explained by the PE grade?
in the city of milford applications for zoning changes go through a two-step process a review by the planning
The following data are monthly steel production figures, in millions of tons.- Draw a stem-and-leaf display of these data.
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