Posted by Me on Saturday, August 17, 2013 at 9:19am.
A simple random sample of cars in a city was categorized according to fuel type and place of manufacture.
domestic foreign
gasoline 146 191
diesel 18 26
hybrid 51 79
Are place of manufacture and fuel type independent?
If the two variables were independent, the chance that a sampled car is a domestic gasoline fueled car would be estimated to be about
0.0362 0.0499 0.2775 0.3820 0.5
If the two variables were independent, the expected number of foreign gas/electric hybrids would be estimated to be _______. (Please keep at least two decimal places)
Degrees of freedom =
1 2 3 4
The chisquare statistic is 0.6716. The test therefore concludes that the two variables are
independent
not independent

Statistics  PsyDAG, Saturday, August 17, 2013 at 12:39pm
We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.

Statistics  Me, Saturday, August 17, 2013 at 12:56pm
Ok.. so I have done this.. And I´ve got the first questions right.. Made a fool of myself with the degrees of freedom, but now I know better... For the question of foreign/hybrid I got 195.209392 for my first try and got it wrong... I messed up the columns.. I need to pass this test.. please help me out...
Also, I get a 90% percent in the chitest for independence, so my NULL is looking good, is that correct??

Statistics  Me, Saturday, August 17, 2013 at 12:59pm
I get 75. something for foreign and hybrid.. is that right?? And ok for NULL, meaning INDEPENDENT.. Can you help me with this?

Statistics  Anonymous, Saturday, August 17, 2013 at 1:47pm
The chisquare statistic is 0.6716. The test therefore concludes that the two variables are
independent
Degrees of freedom =
2

Statistics  Me, Saturday, August 17, 2013 at 3:08pm
So, is 75.3033 ok for Foreign and Hybrid??

Statistics  Mario007, Saturday, August 17, 2013 at 4:06pm
I believe it is!!!!!

Statistics  WalterDe, Sunday, August 18, 2013 at 4:58pm
Exercise set 5 answers:
4c51a450.linkbucks
Note: add dotcom after the word linkbucks
you're welcome

Statistics  stat, Wednesday, August 21, 2013 at 9:50am
what's the answer?
If the two variables were independent, the chance that a sampled car is a domestic gasoline fueled car would be estimated to be about
0.0362 0.0499 0.2775 0.3820 0.5

Statistics  stat, Wednesday, August 21, 2013 at 9:51am
and what's the answer ?
If the two variables were independent, the expected number of foreign gas/electric hybrids would be estimated to be _______. (Please keep at least two decimal places)

Statistics  Jam, Wednesday, August 21, 2013 at 8:26pm
75.3033 is the answer

Statistics  Anonymous, Thursday, August 22, 2013 at 12:14pm
If the two variables were independent, the chance that a sampled car is a domestic gasoline fueled car would be estimated to be about
0.0362 0.0499 0.2775 0.3820 0.5

Statistics  Boss, Thursday, August 22, 2013 at 9:27pm
0.2775

Statistics  Din123, Thursday, August 22, 2013 at 11:35pm
It’s been a long road through Stat 2X. Please click on BOTH the options below for a score of 2 points.
a)She gave us a couple of free points in each of the previous two courses.
b)She’s not going to forget the freebies this time
Please, help me.

Statistics  stat, Friday, August 23, 2013 at 11:21am
thanks .
for other question answer is
click both the options
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