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Real estate.
A random sample of records of sales of homes from Feb. 15 to Apr. 30, 1993, from the files maintained by the Albuquerque Board of Realtors gives the Price and Size (in square feet) of 117 homes. A regression to predict Price (in thousands of dollars) from Size has an R-squared of 71.4%. The residuals plot indicated that a linear model is appropriate.
a) What are the variables and units in this regression?
b) What units does the slope have?
c) Do you think the slope is positive or negative? Explain.
How variable is the number of service calls with which Sam's department must deal?
What is meant by the ordinary least-squares (OLS) method of estimating the ‘‘best'' straight line that fits the sample of XY observations and why do we take vertical deviations?
If all samples of size 64 are drawn, mean of sample according to Central Limit Theorem is 100.
Give a probability distribution for the following: In 1992, the Big 10 collegiate sports conference moved to have women compose at least 40% of its athletes within 5 years.
A, B, C, D. If the order in which the truck visits the eight locations is chosen randomly, what is the probability that it will visit them in alphabetical order?
What are three lessons you learned relative to ANOVA and nonparametric tests? As a result of using this simulation, what concepts and analytic tools will you be able to use in your workplace (i.e., how do you expect to apply what you learned)?
The Texas Transportation institute at texas A&M university conducted a survey to determine the number of hours per year drivers wasted sitting in traffic. the table below shows the number of hours wasted per year sitting in traffic.
Compute the z score corresponding to each of the following values of x. Compute the z score corresponding to each of the following values of x
Each left winger votes for a strike three out of four times in strike votes, whereas each right winger votes for a strike only once out of three times in strike votes. If it is known that the Committee has decided against one particular strike, wh..
How many automobiles should be used in the test? Assume that preliminary mileage tests indicate the standard deviationis 2.6 miles per gallon.
You play a game with two possible outcomes. Outcome A has probability 0.4 and outcome B has probability 0.6. When B occurs you win $2.00; otherwise, you lose $1.00. What is your expected value for this game?
1.The Seneca Children's Fund (SCF) is a local charity that runs a summer camp for disadvantaged children.
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