Class Session #5 - Descriptive Statistics
... • An established probability level which serves as the criterion to determine whether to accept or reject the null hypothesis • It represents the confidence that your results reflect true relationships • Common levels in education • p < .01 (I will correctly reject the null hypothesis 99 of 100 time ...
... • An established probability level which serves as the criterion to determine whether to accept or reject the null hypothesis • It represents the confidence that your results reflect true relationships • Common levels in education • p < .01 (I will correctly reject the null hypothesis 99 of 100 time ...
CHAPTER 11 NOTES: INFERENCE FOR A DISTRIBUTION
... comparable to this survey. In a random sample of 10 employees, with the guarantee of anonymity, each reported their daily personal computer use. The times are recorded below. Employee Time ...
... comparable to this survey. In a random sample of 10 employees, with the guarantee of anonymity, each reported their daily personal computer use. The times are recorded below. Employee Time ...
Document
... Xi’s are independent and identically distributed (iid). If sampling is either with replacement or from an infinite (conceptual) population, Conditions 1 and 2 are satisfied exactly. These conditions will be approximately satisfied if sampling is without replacement, yet the sample size n is much sma ...
... Xi’s are independent and identically distributed (iid). If sampling is either with replacement or from an infinite (conceptual) population, Conditions 1 and 2 are satisfied exactly. These conditions will be approximately satisfied if sampling is without replacement, yet the sample size n is much sma ...
lecture 6 hypothesis tests II
... new “Fun Phonics” reading method is better than the “Letterland” method. You examine the reading power of 6 year old children from two similar ...
... new “Fun Phonics” reading method is better than the “Letterland” method. You examine the reading power of 6 year old children from two similar ...
Chapter 8. Inferences about More Than Two Population Central
... (i.e., µ1 = µ2 = µ3 = µ4 = µ5 ) we might be tempted to run all possible pairwise comparisons of two population means. If we confirm that the five distributions are approximately normal with the same variance σ2, we could run 10 t tests comparing all pairs of means. ...
... (i.e., µ1 = µ2 = µ3 = µ4 = µ5 ) we might be tempted to run all possible pairwise comparisons of two population means. If we confirm that the five distributions are approximately normal with the same variance σ2, we could run 10 t tests comparing all pairs of means. ...