The claim is that the proportion of peas with yellow pods is equal to 0.25 (or 25%). The sample statistics from one experiment include 570 peas with 111 of them having yellow pods. Find the value of the test statistic.

Question

anonymous · Answer

hi

anonymous · Answer

Hey there

anonymous · Answer

hi

anonymous · Answer

don`t understand the question!!!

anonymous · Answer

Nope

amistre64 · Answer

what do you not understand about the question?

anonymous · Answer

How to put the equation into my TI83 to obtain the value

anonymous · Answer

Of the test statistic

amistre64 · Answer

looks like we have 1 sample, and are tring to evaluate a proportion ...

amistre64 · Answer

what does 2nd, vars, tests (maybe calc) get for us?

amistre64 · Answer

http://cfcc.edu/faculty/cmoore/TI-STAT.htm

anonymous · Answer

ok I have it up but how would I input the information?

amistre64 · Answer

attachment

amistre64 · Answer

tell me what the inputs are ... are what youd assume they should be

amistre64 · Answer

po = ?
n = ?
x = ?

anonymous · Answer

po=0.25
n=600
x= no sure about

anonymous · Answer

not 600 I meant 570

amistre64 · Answer

po is good, now from the information we have only 2 numbers left to work

570 peas with 
111 of them having yellow pods

anonymous · Answer

Yes. So, then to put that into an equation is what I am having difficulty with.

amistre64 · Answer

there is no equation, you simply type them into the calculator

po = .25
n=570
x=111

the last thing to do is to determine the type of tails we want to test.

amistre64 · Answer

you can work it as an equation, but then why would we have used the function to start with?

anonymous · Answer

Oh ok... So how would I input it into the ti83?

amistre64 · Answer

i already covered that  ... with links and pictures and everything.

anonymous · Answer

Ok, I will try it out.

amistre64 · Answer

once you get to the function and fill in those 3 parts, theres one last part to cover.  let me know when you are there.

anonymous · Answer

ok, I have it calculated

amistre64 · Answer

and what is your value?

amistre64 · Answer

also, what did you choose for the last portion?

$\ne$p, <p, or  >p

anonymous · Answer

All I see is:
z=-3.047
p=.0011
p^=.1947
n=570

amistre64 · Answer

your test stat is z :)

anonymous · Answer

I just clicked on calculate

amistre64 · Answer

thats fine, we werent asked anything that would alter the z value.

anonymous · Answer

OMG thank you thank you!!!

amistre64 · Answer

another way to have done is: z = (111/570 - .25)/sqrt(.25(1-.25)/570) which is -3.047 http://www.wolframalpha.com/input/?i=%28111%2F570+-+.25%29%2Fsqrt%28.25%281-.25%29%2F570%29