0 With a significant p value, this number is not included
Larger sample, decrease confidence interval How to narrow the confidence interval
T.Test How to hypothesis test with one sample
P-Value The likelihood of getting the new mean
PERCENTILE Calculate percent equal to or less than value
Multiple R2 Correlation coefficient for single variable linear regression
Heteroskedastic Data has a funnel shape
standard deviation The Square root of variance
Type 1 error Falsely rejecting H0
type 2 error Falsely failing to reject H0
Standard deviation / mean Coefficient of variation
R2 Measures the variation in the dependent variable
research the data point How to deal with an outlier
Norm.Dist Used to calculate percentage over or under a value
Multicollinearity Is not an issue for forecasting
z-value Number of standard variations an observation is from mean
standard error Gives the variation in a sample
CONFIDENCE.NORM Used to calculate confidence in large samples
Confidence.T Used to calculate confidence in small samples
P-value When positive, increasing x increases Y
P-value When negative, increasing X decreases Y
one sided test Test to measure only an increase or a decrease
HBS Core Business Analytics
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