stats 2

HideShow resource information
Requirements for Pearsons PMCC?
Underlying population needs to be bivariate normal, bulk of data should roughly form ellipse on scatter graph, data needs to come from random sample
1 of 10
Null and alternative hypothesis for PMCC?
H0: rho, p= 0...... h1: p>0... where p is the population correlation coefficient
2 of 10
Null and alternative hypothesis for Spearmans rank?
H0: no association between variable and population of..... h1: some association between variable and population of..
3 of 10
Formula for least squares regression line?
(y - ymean) = m(x - xmean)... where m=(Sxy)/(Sxx) -- use formula book
4 of 10
Formula for a residual?
observed y value - expected y value
5 of 10
Requirements for Poisson?
'events occur randomly and independently of each other' AND events occur at a uniform average rate
6 of 10
When can Poisson approximate Binomial?
when n is large and p is small
7 of 10
When can Normal approximate Binomial? How?
when n is large, p is about 0.5___ x~N(np,npq)
8 of 10
When can Normal approximate Poisson? How?
when lambda is greater than 10____ x~N(lambda, lambda)
9 of 10
What is meant by the 5% significance level?
there is a 5% chance of rejecting h0 when it is true
10 of 10

Other cards in this set

Card 2

Front

Null and alternative hypothesis for PMCC?

Back

H0: rho, p= 0...... h1: p>0... where p is the population correlation coefficient

Card 3

Front

Null and alternative hypothesis for Spearmans rank?

Back

Preview of the front of card 3

Card 4

Front

Formula for least squares regression line?

Back

Preview of the front of card 4

Card 5

Front

Formula for a residual?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Mathematics resources:

See all Mathematics resources »See all Statistics, averages and distributions resources »