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ax7221 -> RE: Chevrolet Tahoe reliability - how does it compare? (5/30/2008 6:51:48 AM)
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*sigh*
quote:
ORIGINAL: mkaresh
The general trend for GM has been downward since 1962. Did some research on that about 15 years ago, and it's only gotten worse.
Firstly, lets do some math here: 2008-15=1993. In 1993, GM was in the beginning stages of their biggest profits ever. Now, Im not sure what your definition of "it's only gotten worse" is, but my definition doesn't include 250% profits ($37pps to $93pss) or having a steady climbing of profits for 18 years ('81-'99).
quote:
ORIGINAL: mkaresh
Dude--what your stock chart shows is that GM's stock price is now as low as it was back in 1962!
Actually its lower, like when it was in 1974, ...1974,1974, what happened in 1974? Oh thats right the oil embargo.... http://en.wikipedia.org/wiki/1973_oil_crisis#Immediate_economic_impact_of_the_embargo
Yes their stock is as low as it was in the 60's, and its because of the economy. See when gas prices rise, the cost of everything, as I'm sure you've found out in the last years, goes up as well. Attached, is the chart for Ford, who's stock show the EXACT SAME TREND. Now, I cant find a chart for diamler/chrysler/dodge (atleast not US) but I would assume that its the same.
However, moving onto imports (your hondas and toyotas), these cars are generally lower in price and get better fuel economy. I've attached their stock chart and you'll notice something rather unintuitive. Their stocks *rise* as fuel increases. Any guess why? It's because the people first effected by rising cost of living (food, transportation etc) are the people with the lowest disposable income. These people who owned SUV's and such now cant afford the gas/payment/insurance *and* rising food costs. They trade their suv's in for compacts and sedans to get lower bills. And the cheapest, most efficient are from Toyota and Honda, (remember about 3 years ago when the hybrids starting coming and people were getting discounts and tax breaks for being green and posting 60mpg where chevys cavalier/cobalt were getting I think 30, same as ford's focus?). There is a disclaimer here, because Honda Motors and Toyota Motor Company are umbrella companies that not only produce cars/trucks, they also have almost a monopoly on recreational vehicles (which are factored into the stock of the company) like dirt bikes, atv's, 3 wheelers, personal water craft, also, remember back in 2006(?) when the hurricanes blasted Florida? And the gov't cut you a check for (I think) $600 for buying a generator? Honda reeped sick profits from that. But, either way, those two charts are attached as well.
Moving on.
quote:
ORIGINAL: mkaresh
As for the sample, your argument would certainly apply if people reported on problems that have already happened. But instead I don't allow previous repairs to be reported on the main survey.
No, it still applies, its a statistical convenience bias. And in case you're unaware, convience sampling has the disadvantage of having a potentially "large and unmeasured bias."*
Furthermore: "The classic example of a convenience sample is standing at a shopping mall and selecting shoppers as they walk by to fill out a survey."** Somewhat like, oh I dont know, posting to a forum asking random (in this case) chevy owners to fill out a survey?
* http://rand.org/pubs/monograph_reports/MR1480/MR1480.appc.pdf
** http://www.childrens-mercy.org/stats/definitions/convenience.htm
[image]local://upfiles/7977/8BF06AFAABB8402FA2D55DA289281EF4.jpg[/image]
[image]local://upfiles/7977/47D842DEAA3E487E97E5661D5C3B90E0.jpg[/image]
[image]local://upfiles/7977/8BB8C0D9C315446D94B2B2532B8B15DA.jpg[/image]
I'm not sure why, but the scale on the graphs are off for 2 of them (I didn't do it, yahoo did, but's just the dates the area elongated, the price range is scaled properly)
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