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Empirical research was conducted to investigate the variables that impact the size distribution of manufacturing firms in international markets (World Development, Vol. 20,1992). Data collected on n = 54 countries were used to model the country's size distribution y, measured as the share of manufacturing firms in the country with 100 or more workers. The model studied was E(y)
a. The researchers hypothesized that the higher the credit ratio of a country, the smaller the size distribution of manufacturing firms. Explain how to test this hypothesis.
b. The researchers hypothesized that the higher the stock ratio of a country, the larger the size distribution of manufacturing firms. Explain how to test this hypothesis.
The Bureau of Labor Statistics in its Monthly Labor Review published the over per month percent change in the price index for imports from April 2006 to April 2007. Calculate the average percent change for the 9 months of 2006 and the 4 months of 2..
Harrington Health Food stocks 5 loaves of Neutro-Bread. The probability distribution for sales of Neutro-Bread is listed in following table. How many loaves will Harrington sell on average?
Consider a random sample of size n from a normal distribution, Xi ~ N(m,9). a) Find the CRLB for the variances of unbiased estimators of m. b) Is the MLE, m(hat) = X(bar), a UMVUE of m?
Results would be misused if wendys uses them to draw generalisation about the greater population or regard them as conclusive. Suggest and elaborate on two possible measures to glean such information.
At the .05 level, you are testing whether there is a significant difference in the proportions of college students and similar aged non college students having accidents during the two year period. What is the value of your test statistic.
Use the binomialcdf function to calculate the exact probability pn as a function of n. Whhat is the source of the unusual sawtooth pattern? Compare your results to the solution of Quiz 7.5.
Use a 0.01 significance level to test the claim that most people believe that the Loch Ness monster exists. How is the conclusion affected by the fact that Internet users who saw the question could decide whether to respond.
Identify the independent and dependent variable, and state the research hypothesis for your study. The variables must be categorical variables.
What can you infer from the statistics and what information might lead you to a different conclusion - what additional information would be valuable to help draw a more certain conclusion?
a symphony orchestra has in its repertoire 30 haydn symphonies 15 modern works and 9 beethoven symphonies. its program
a presidental candidate conducts a poll of likely voters in ohio to determine their mean age answer the following1.
The average cost of a renting a compact size car in a major metropolitan area is R51.74 with a standard deviation of 7.48. Assume a normal distribution.
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