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junior college 2 | H1 Maths
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Pauline
Pauline

junior college 2 chevron_right H1 Maths chevron_right Singapore

Managed to get the answer z=5.83. However answer for p value is 0.0001. Not sure how do i get this part as the z table only has z value till 4

Date Posted: 1 year ago
Views: 144
NotATutor
NotATutor
1 year ago
The answer is from graphic calculator. however, if you get Zcal = 5383, it is a very significant indication of mean > 1/6... Just state the level of significant you want to set... say 1 % . Then make your conclusion.
Pauline
Pauline
1 year ago
Thank you for the reply. We cant use graphic calculator. I was taught that the default alpha is 5%. Then compare z value to alpha at 5%. Afterwards, use the z value to calculate p value to determine strength of conclusion. Does that mean for this question i assume alpha is 1% since z value is big hence p value should be small?
NotATutor
NotATutor
1 year ago
1% is good enouhh
Pauline
Pauline
1 year ago
I uploaded my working and clarifications under answer. Could you please advise me if i am right on saying probability cant be 0 hence we assume 1%?
NotATutor
NotATutor
1 year ago
I am making some changes for you. Will upload later
NotATutor
NotATutor
1 year ago
Uploaded. Do not need to talk about p value.

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Pauline
Pauline's answer
5 answers (A Helpful Person)
1st
I followed the working based on lecture notes. For 1% good enough does it mean since my calculated p value is 0 which is impossible for probability to be 0, hence we should assume 1% which should be 0.0001?
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NotATutor
Notatutor's answer
1551 answers (A Helpful Person)
NotATutor
NotATutor
1 year ago
your table cannot give any p-value for this case.