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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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On Wed, 19 Jan 2005 02:57:09 GMT, "carl mciver"
wrote: snip Now you see why states that have high minimum wage laws have the highest unemployment. snip Problem is that while this conjecture is plausible it is by no means proven. For anyone that is interested in this conjecture, one of the ways to examine the relationship is to gather state unemployment rates and minimum wages across several years and perform what is called an analysis of variance or f-ratio test. This will show both the probability of a relationship and estimate the size of the affect of the relationship. There are several possible outcomes. (1) There is no statistically significant relationship at which point you can move on to something else. (2) There is a statistically significant relationship but the practical effect is not significant. To use made up numbers for an example, it can be that increasing the minimum wage does indeed increase the unemployment rate compared to other states, but that a $1.00 increase increases the unemployment rate by 0.001%, which is not practically significant, at which point you can move on to something else. (3) The third possibility is that there are both significant and practical correlations. The problem here is that high correlation does *NOT* prove causality. For example, North Dakota with the federal minimum wage may indeed have a lower unemployment rate than California with a state minimum wage $1.50 higher than the federal minimum, but only because all the unemployed people in North Dakota moved to California. Disentangling cause and effect, confounding and mediating variables is frequently the hardest part of any real statistical analysis. This particular branch of statistics and economics is called econometrics if you are interested and want to do a Google search. You can include the political party of the president and composition of the houses of congress if you desire. The analysis is then called political econometrics. By "shifting" the data forward and backward in time compared to the variables your are interested in, such as unemployment rate, inflation rate, current accounts balance of payments deficit, etc. you can determine if political parties make any difference, or if unemployment rates, etc. affect election outcomes. I have generally found then the affect of time is included in the analysis, such as using the year as a variable, it generally "swamps" everything else, leaving no variance to be explained by any of the other variables, including political party control. This indicates most of the current discussions and political activity are simply "Punch and Judy" shows, with no real effect on the results or outcomes, although these may be highly entertaining to the participants and spectators. GmcD |
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