Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
|
what is sthe proability of 2 succeses in 6 tries if the probability of success is .4?
|
nCx*p^x(1-p)^n-x)
15*(.4)^2(1-.4)^(6-2_=.31 |
|
|
Z Score=
|
(x-u)/standard deviation
|
|
|
Type I Error
|
A type I error is the rejection of a hypothesis that is actually true.
|
|
|
Type II Error
|
II error is the acceptance of a hypothesis that is actually false
|
|
|
standard error of the sample mean equals
|
the standard error of the sample mean equals the standard deviation of the population divided by the square root of the sample size
|
|
|
Standard Error Formula
|
Standard error= Standard deviation/(sample size)^.5
|
|
|
number of correlations in a multivariate normal distribution of n variables is computed by the formula
|
((n) × (n-1)) / 2
|
|
|
sequence of events for testing a hypothesis?
|
Stating the hypotheses.
Identifying the test statistic and its probability distribution. Specifying the significance level. Stating the decision rule. Collecting the data and performing the calculations. Making the statistical decision. Making the economic or investment decision. |
|
|
symmetry principle holds that:
|
The symmetry principle holds that people in similar situations should be treated similarly and that fairness requires equality of opportunity rather than equality of results. Individuals provide voluntary services in exchange for economic benefit and they get goods and services from the economy that are equal in value to their contributions to the economy.
|
