=average(cells)
=median(cells)
=mode.sngl(cells)
=max(cells)
=min(cells)
Quartiles (you need to find first, second, third, or fourth so type 1,2,3, or 4)
=quartile.exc(cells, which quartile)
Percentiles (type in percentile you need. I.e. to find 20th percentile type 0.20)
=percentile(cells, percentile needed)
Interquartile Range (IQR) = Q3 - Q1
Lower Limit Bound = Q1 - 1.5*IQR
Upper Limit Bound = Q3 +1.5*IQR
Midrange:
=(MAX(cells) + MIN(cells)) / 2
Standard deviation (pick sample or population):
=stdev.s(cells)
=stdev.p(cells)
=range(cells)
Z-Score (autofill)
Stats Formula:
Excel Formula:
=(B17-$C$12)/$C$13
-You then can use auto fill and drag down (little box in the bottom left hand corner when you click on the cell)
-The $ lock that cell in place. Now the mean and standard deviation do not change when you drag it down.
Binomial:
=binomial.dist(# of success, # of trials, probability of success as decimal, FALSE)
=binomial.dist.range(# of trials, probability of success, lower range #, higher range number # )
The numbers for my problem #1:
Probability of success: 39%
Number of trials: 5
#1
Row 9: Null is always =
Row 10: Alternative you have to read the problem, should be < or > or =/=
Row 15-27 is probably always going to be yes on all of them because if there is a no you can’t do the problem
Row 34-37:
Critical Value:
If < =NORM.S.INV(B4)
If > =-NORM.S.INV(B4)
If =/= =-NORM.S.INV(B4/2)
Sample Proportion (p-hat): G4/B5
Test Statistic: =(B35-G5)/SQRT((G5*(1-G5))/B5)
P-Value:
If < = NORM.S.DIST(B36,TRUE) Gives you to the left
If > =1-NORM.S.DIST(B36,TRUE) Gives you to the right
If =/= =2*NORM.S.DIST(B36,TRUE) Gives you to the left then times 2 because it’s 2 tail
#2
Row 12: Null is always =
Row 13: Alternative you have to read the problem, should be < or > or =/=
Row 15: < or > is one tail, =/= is two tail
Row 21: =(B5-B7)/(F5/SQRT(B6))
Row 30:
Smaller Critical Value: =NORM.S.INV(F6/2)
Larger Critical Value: =-NORM.S.INV(F6/2) (or =-C30)