Who's the Group
Each individual and each group has an equal opportunity to be selected
What is a Simple Random Sample?
Two events that can not happen together
What is mutually exclusive?
A statistical design which creates groups that are similar in some way, and then randomizes the treatments...
What is a block design random sample?
The 3 conditions to CHECK!!
What is Randomness, 10% Condition, Large Counts
The hypothesis that entitles there is no difference?
What is the null hypothesis?
Sampling all from some selected groups?
What is a Cluster Sample?
Knowing that when one event has occurred or hasn't occurred doesn't affect the probability of the second event
What is Independent?
The probability that the test correctly rejects the null hypothesis (Ho) when the alternative hypothesis (Ha) is true...
What is POWER?
When the Confidence level increases, the Margin of Error...
What is INCREASES, creating a wider interval?
If the p-value is low...
What is REJECT the Ho?
Sampling some from all groups
What is a Stratified Random Sample?
The law stating, if we do something many, many times the proportion of desired outcomes will approach the true probability
What is the Law of Large Numbers?
When the null hypothesis is rejected but it is in fact true...
What is a Type I Error?
The critical value used for finding the population mean
What is t-star with degrees of freedom?
If the Ho value is not in the confidence interval...
What is the Ho value is NOT plausible so we REJECT Ho
Choosing a random starting point and using equal intervals to make the selection
What is a Systematic Random Sample?
The three steps to a simulation
What is
1. Describe the simulation of one trial
2. Perform many trials for repetition
3. Use the results to answer the question
The FIVE conditions for a confidence interval for slope...
What is linear, Independent, normal, equal standard deviations, and random?
If the sample size increases, the Margin of Error...
What is DECREASES, creating a narrower interval?
The items included in the CHOOSE step?
What is select what test to use, state the parameter, list the statistics, and give the null and alternative hypothesis
The three steps to taking an SRS
What is labeling individuals, randomization, and selecting the sample?
The equation for events that are not mutually exclusive
What is P(A or B)= P(A)+ P(B)- P(A & B)?
The test used to answer this question...
Is there convincing statistical evidence for a difference in the distribution of admission decisions for South Dakota State University and North Dakota State University?
What is a Chi^2 test for homogeneity?
The size of the sample for sampling means
What is n greater than or equal to 30?
The equation for a significance test for mu1 - mu2
What is t= (x1-x2)-(u1-u2)/ Square root of s1^2/n1 + s2^2/n2