- Messages
- 63
- Reaction score
- 31
- Points
- 18
Ok thank youu umm there's this q about the chi squared test on/11/53 b) (iii) I'm not being able to solve it can you clear for me how they got the expected value?not needed
We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
Ok thank youu umm there's this q about the chi squared test on/11/53 b) (iii) I'm not being able to solve it can you clear for me how they got the expected value?not needed
What's a heat screen? never heard of oneThey reject serial dilutios? I dont think so.
heat screen/heat filter.
incubator
Salmu Alaikom !Salmu alakom guyz ,
In question 3 O/N2007 P5 ,
how to calculate the expected result for the chi square ???
I really don't know how did they calculate it and have got 80 !! + how did they get the degrees of freedom = 2 ??? wont it be 1 ???
Here is the paper :
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_w07_qp_5.pdf
and here is the MS :
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_w07_ms_5.pdf
Waiting for your help
They havent mentioned in detail. They have only mentioned this word. An additional point which may help u to score.What's a heat screen? never heard of one
And thanks!
Ok thanks.you should always write in the null hypothesis that the differences are not significant. That's what the null hypothesis is defined by
theres a hint in the question itself c the units and do ull get the answer
Some times they Reject waterbath and use room temp,They reject serial dilutios? I dont think so.
heat screen/heat filter.
incubator
Depends upon the type of the experiment and the type of question asked .Some times they Reject waterbath and use room temp,
and in other cases Reject room temp, and use waterbath !
how to know this ?
validity depends on the type of test. chi-squared or t-testCan anyone tell me the difference between reliability and Validity ? :S
They have said in the question that the cats without tails are always heterozygous.. so in cross 1: both parents are heterozygous..here's this q about the chi squared test on/11/53 b) (iii) I'm not being able to solve it can you clear for me how they got the expected value?
I think when teachers say 2 Standard error units above and below. by that they meanhttp://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_w10_qp_53.pdf
In question no. 1 part c(iii)
why are we not multiplying the standard error with 2 when drawing the graph i.e why not drawing the error bars +-2(1x2) and +-4(2x2)?
umm it is more like stating the opposite of the statementnull hypothesis means there is 'NO SIGNIFICANT DIFFERENCE' always.. there is no question of significant or not, cuz its always not...
For almost 10 years, the site XtremePapers has been trying very hard to serve its users.
However, we are now struggling to cover its operational costs due to unforeseen circumstances. If we helped you in any way, kindly contribute and be the part of this effort. No act of kindness, no matter how small, is ever wasted.
Click here to Donate Now