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According to the National Association of Home Builders, the average size of a home in 1950 was 983 ft2 . The average size increased to 1500 ft2 in 1970, 2080 ft2 in 1990; and 2330 ft2 in 2003 (San Luis Obispo Tribune, October 16, 2005).
a. Construct a time series plot that shows how the average size of a home has changed over time.
b. If the trend of the time series plot continued, what would you predict the average home size to have been in 2010?
consider a study in which 41 participants were treated with an intervention. the study reported mean body weight of 140
Criticize the following definitions in light of the eight rules for lexical definitions:- Satire is a kind of glass, wherein beholders do generally discover everybody's face but their own.
Using the notation of this section, let U be the number of observed values of X in the smallest d items of the combined sample of m + n items.
how will increasing the sample size without changing the level of confidence affect the width of a confidence interval
During the 2003 season, MLB took steps to speed up the play of baseball games in order to maintain fan interest; the following results come from a sample of 60 games played during the summer of 2002. And a sample of 50 games played during the summ..
He randomly selects a sample of 10 items of the procduct from a large lot ready to be shipped. He (given that) the true proportion of perfect condition items is only 80% what is the probability that the lot will not be shipped?
Construct a stem-and-leaf display for these data.- Construct a frequency distribution for these data.- Determine the interval width and the class mark for each of the classes in your frequency distribution.
In given problem you drew three conclusions based on HSD tests. Each could be wrong. For each conclusion, identify what type of error is possible.
A researcher measures a response variable Y and explanatory variable X on each of several objects. A scatterplot of the measurements is as follows.
The height of a tree will be measured using a clinometer. For this device, the measurement error has a normal distribution with mean meter and standard deviation . If the tree is exactly 35 meters tall, what is the probability that the clinometer ..
the weight of the cereal in a box is a random variable with mean 12.15 ounces and standard deviation 0.2 ounce. what
An independent financial advisor claims an average rate of return, μ, on a particular investment is at least 7%. In testing her claim, the correct pair of hypotheses is:
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