MATH 4TH QUARTER
Non-Directional Test
two-tailed test
Percentile
value on the scale of 100 that indicates the percent of distribution that is equal to or below it
2.33
1%, one tailed
2.575
1%, two tailed
1.28
10%, one-tailed
1.645
10%, two-tailed
1.645
5%, one-tailed
1.96
5%, two-tailed
Less that cumulative frequency
<cf
Less that the cumulative frequency of the boundary
<cfb
if N and 1/2(N-1) is even
Case 2
k=1+3.33logN
Class Interval
i=R/k
Class Size
Dk=k/10(n)
Decile
Alternative Hypothesis
Ha, not equal , less than , greater than
Right-tailed test
Ho is equal or less than, Ha is more than
Left-tailed test
Ho is equal or more than, Ha is less than
One-tailed test
Ho is equal, Ha is less than or greater than
Two-tailed test
Ho is equal, Ha is not equal
Null Hypothesis
Ho, equal
k/100xn
Index
Pk=k/100(n)
Percentile
H-L
Range
Quartiles
Values that divide a data set into four equal parts
if N and 1/2(N-1) are both odd
case 1
Frequency of the decile class
fdc
Frequency of the percentile class
fpc
Frequency of the quartile class
fqc
z-test
has population standard deviation
t-test
has sample standard deviation
Case 3
if N is divisible bye 4
Case 4
if N is not divisible by 4
Get average
if index is a whole number
Round up
if index is not a whole number
Lower Boundary of the Decile Class
lbdc
Lower Boundary of the Percentile Class
lbpc
Lower Boundary of the Quartile Class
lbqc
Directional Test
one-tailed test
p-test
population proportion
Hypothesis Testing
procedure in making decisions based on a sample evidence
1-p
q
