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1. Fit the saturated regression of the number of projects per 1,000 on the variables defined in the next 33 columns of the data table (Pct Added Housing Sq Ft through Income [per cap] 2000).
(a) Why is this model difficult to interpret?
(b) How accurately will this model predict new locations?
2. Apply forward stepwise regression to build a more parsimonious model from this collec- tion of potential explanatory variables. Be sure to avoid over-fitting. Interpret, if you can, the model obtained by stepwise. Is collinearity a problem?
Tthe amount is approximately normally distributed with a mean of 16 and a standard deviation of 1.5. What percent of the cups will have 15 oz or fewer?
1) The alternative hypothesis is a
If the voice identifications were made by random guess, find the probability that all 9 victims would select the same person?
Find the Binomial Probability Distribution, n=25 and p = .40 Find the probability P(8
If two voters are randomly selected for a telephone survey, what is the probability that they one is a Republican followed by a Democrat? Round your answer to 4 decimal places.
When we say we have a confidence level of 95%, what do you think our "margin of error" is? If we move the level of confidence from 95 to 99%, what will happen to our margin of error? What will happen to the width of our confidence interval?
a sanitation department is interested in estimating the mean amount of garbage per bin for all bins in the city. in a
If we assume that attention spans are normally distributed, find a 95% confidence interval for the mean attention span of children playing with this new toy. What is the lower limit of the confidence interval.
Frequency Distribution and Graphic Presentations - On a separate graph draw and label the Cumulative Frequency Polygon.
To explain this, be sure to explain whether the null hypothesis should be rejected, the likelihood of that decision being an error, and why it might have been an error.
A statistics practitioner conducted a two-factor analysis of variance experiment with a =4, b = 3, and r = 8. The sum of squares are listed here:
Develop the tools necessary to educate project participants and to evaluate project outcomes (surveys, questionnaires, teaching materials, PowerPoint slides, etc.).
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