Stat Formula Sheet

Stat Formula Sheet - ) ( ∩ = a b. Web formulas and tables for ap statistics i. Web 0 if t, the observed test statistic, is in the critical region, ie t= x 65 1:2 (pg.38 of the notes), reject h 0 if t 1:96 = z =2or if t 1:96 = z. Probability and distributions pa b pa pb pa b ( ) ( ) ( ) ( ) ∪= + − ∩ ( ) ( ) ( ) | pa b p ab pb ∩ = Y = a + bx. Web formulas for ap statistics. A ( ) | b. 1 2 ∑ = n − 1 ( xi − x ) ∑ ( − xi x )2. Y ˆ = a + bx. 1 ∑ n − 1.

Probability And Distributions Pa B Pa Pb Pa B ( ) ( ) ( ) ( ) ∪= + − ∩ ( ) ( ) ( ) | Pa B P Ab Pb ∩ =

Y = a + bx. Web 0 if t, the observed test statistic, is in the critical region, ie t= x 65 1:2 (pg.38 of the notes), reject h 0 if t 1:96 = z =2or if t 1:96 = z. 1 2 ∑ = n − 1 ( xi − x ) ∑ ( − xi x )2. Web formulas and tables for ap statistics i.

The Information On The Formula Sheet Is Organized Into Clearly Defined Topics.

A ( ∪ b ) ( ) ( ) ( = p a + p b − p a ∩ b ) s. Web formulas for ap statistics. Y ˆ = a + bx. One sample t jtj= x 0 s= p n jtj t n 1;

1 ∑ N − 1.

X r = i − x − y i y. Paired t jtj= d s= p n jtj t The first page contains three topics: Descriptive statistics 1 i i x xx nn ∑ =∑= ( ) ( ) 2 1 2 1 1 i xi xx s xx n n ∑− = ∑− = − − y a bx ˆ = + y a bx = + 1 1 ii xy xx y y r n ss −− = ∑− y x br s = s ii.

Type Of Test Test Statistic Reject H 0 If:

The variables are not defined on the formula sheet, so it is important to be familiar with them. X = ∑ n x xi. =2 ˙ 2 is unknown. ) ( ∩ = a b.