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March 31, 2015

March 31, 2015

Posted by **Me** on Saturday, August 17, 2013 at 9:19am.

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 chi-square statistic is 0.6716. The test therefore concludes that the two variables are

independent

not independent

- Statistics -
**PsyDAG**, Saturday, August 17, 2013 at 12:39pmWe 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 12:56pmOk.. 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 chi-test for independence, so my NULL is looking good, is that correct??

- Statistics -
**Me**, Saturday, August 17, 2013 at 12:59pmI 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 1:47pmThe chi-square 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 3:08pmSo, is 75.3033 ok for Foreign and Hybrid??

- Statistics -
**Mario007**, Saturday, August 17, 2013 at 4:06pmI believe it is!!!!!

- Statistics -
**WalterDe**, Sunday, August 18, 2013 at 4:58pmExercise set 5 answers:

4c51a450.linkbucks

Note: add dotcom after the word linkbucks

you're welcome

- Statistics -
**stat**, Wednesday, August 21, 2013 at 9:50amwhat'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 9:51amand 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 8:26pm75.3033 is the answer

- Statistics -
**Anonymous**, Thursday, August 22, 2013 at 12:14pmIf 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 9:27pm0.2775

- Statistics -
**Din123**, Thursday, August 22, 2013 at 11:35pmIt’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 11:21amthanks .

for other question answer is

click both the options

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