# Maths (stats help)

Hi, could you guys help me understand statistics. Basically Ive recorded some data from an experiment I carried out. Using programs like excel and minitab I have plotted scatter graphs, regression curves etc.

Some of my questions:

1. What does finding the equation of say a curve or line do i.e. the purpose?

2. If I find the P value of one of my graphs what do I do with this value.

3. What stats can I apply to my data to asses whether it is reliable or not, or whether the data is significant or not?

Essentially I need methods to let me know whether I can reject or accept my hypothesis, I'd like to know if the data I collected happened by chance or is statistically significant.

Many thanks.

Some of my questions:

1. What does finding the equation of say a curve or line do i.e. the purpose?

2. If I find the P value of one of my graphs what do I do with this value.

3. What stats can I apply to my data to asses whether it is reliable or not, or whether the data is significant or not?

Essentially I need methods to let me know whether I can reject or accept my hypothesis, I'd like to know if the data I collected happened by chance or is statistically significant.

Many thanks.

Original Poster

2) The p value is the probability of obtaining that result / value

3) There are many different hypothesis tests. : Spearman's rank, PMCC, Chi-squared test ...... to name a few. Also depending on distribution there are the standard binomial and poisson

Hope this helped.

PS: I have done S1 and S2 and am currently doing S3 (A-level maths modules)

T-test

Original Poster

Ive also ready a little bit about the P value. Is it as simple as if the P value is above X then the hypothesis is correct or incorrect?