MGSC 291 EXAM 2 University of South Carolina (1)

MGSC 291 EXAM 2 University of South Carolina
parameter= some hypothesized value

= grater than or equal to, less than or equal to - ANS-Null Hypothesis

uses

not =, <, > - ANS-Alternative Hypothesis

the probability given that the null hypothesis is true, of observing a test statistic that extreme or
more extreme in the direction go the alternative hypothesis - ANS-P-Value

Reject Ho (find for Ha)
Fail to reject Ho (do not find for Ha) - ANS-What are the two possible decisions for a hypothesis

P < 0.001, overwhelming evidence
P < 0.01, strong evidence
P < 0.05, sufficient evidence
P < 0.10, marginal evidence
P > 0.10, little to no evidence - ANS-p-values and their significances

Reject Ho if Ho is true - ANS-Type 1 Error
(Could make a Type I error if you reject HO
probability of a Type I error = α (the significance level of the test))

Fail to reject Ho if Ho is false - ANS-Type 2 Error
(definition
Could make a Type II error if you fail to reject HO
Probability of a Type II error = β
1 - β = power)

1-B00000
increase alpha= increase power
increase n= increase power
lower std dev= larger power - ANS-Power

relies on another variable - ANS-Dependent Sample

rely on nothing - ANS-Independent Sample

- ANS-One-Way ANOVA (Analysis of Variance)