Saturated regression of the number of projects

Assignment Help Basic Statistics
Reference no: EM131009365

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?

Reference no: EM131009365

Questions Cloud

T-interval for the mean or the corresponding : 1. An analyst decided to use either the 95% t-interval for the mean or the corresponding 95% interval for the median, whichever was shorter. His sample was symmetric, so the mean and median are roughly the same in his population. What do you think..
Daily summary of the stock market : An investor scanned the daily summary of the stock market in the Wall Street Journal. She found 12 stocks whose return exceeded the return on the market that day. The one-sample 95% t-interval based on these data does not include zero.
What would actually constitute randomness : How would you go about deciding whether the playing sequence is random? What would actually constitute randomness? An item about this issue can be found at If it is gone by the time you search for it, it is highly likely that a Google search would..
Confidence interval for mean sales : He then raised 10 to the power of the endpoints of the interval to get back to dollars. He claims that this is a 95% confidence interval for mean sales. What do you think?
Saturated regression of the number of projects : 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).
Describing the elements of painting and sculpture : Include a discussion of all of the following describing the elements of each: Painting, Sculpture, Architecture and Music
Draw a free-body diagram for a positively charged : Determine the speed at which the 16O ions enter the chamber. Repeat for the ) 17O ions. Does the mass of the ion affect the speed at which it enters the chamber?
Explanatory variable sq : The stepwise model (Table 6) includes the explanatory variable Sq. Temp Deviation, the square of the difference between room temperature and 75 degrees. Why 75? Add Room Temp itself to the regression, and then use the resulting estimates to find t..
Why might the sampling in this study have been limited : It has been reported that tobacco companies are making a massive advertising effort in Asia. A few years ago only 7% of Chinese women smoked (compared to 61% of Chinese men). How would a health psychologist go about studying the health effects of ..

Reviews

Write a Review

Basic Statistics Questions & Answers

  What percent of coke cups will have fifteen oz

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?

  Defines the boundary of the reject region

1) The alternative hypothesis is a

  Identifications by random guess

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

Find the Binomial Probability Distribution, n=25 and p = .40 Find the probability P(8

  Probability that one is a republican followed by democrat

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.

  Describing level of significance

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

a sanitation department is interested in estimating the mean amount of garbage per bin for all bins in the city. in a

  Find the lower and upper limit of the confidence interval

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

Frequency Distribution and Graphic Presentations - On a separate graph draw and label the Cumulative Frequency Polygon.

  Explain whether null hypothesis should be rejected

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.

  Significance level to determine the factors interactions

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:

  Evaluate project outcomes

Develop the tools necessary to educate project participants and to evaluate project outcomes (surveys, questionnaires, teaching materials, PowerPoint slides, etc.).

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd