Posted by Me on .
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,
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,
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,
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,
The chisquare statistic is 0.6716. The test therefore concludes that the two variables are
independent
Degrees of freedom =
2 
Statistics 
Me,
So, is 75.3033 ok for Foreign and Hybrid??

Statistics 
Mario007,
I believe it is!!!!!

Statistics 
WalterDe,
Exercise set 5 answers:
4c51a450.linkbucks
Note: add dotcom after the word linkbucks
you're welcome 
Statistics 
stat,
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,
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,
75.3033 is the answer

Statistics 
Anonymous,
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,
0.2775

Statistics 
Din123,
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,
thanks .
for other question answer is
click both the options