CH 4-6 exam luh study quiz

uses ESTIMATED standard error

compares two groups to see if they represent the same of different populations

reserchers believe its true but they believe there is a difference

standard deviation of a sampling distribution

A distribution of sample meanswhere each sample is the samesize

probability of one outcome OR another outcome

number of standard dev units the sample mean is from the population mean

direction of difference is not predicted

does not predict the direction of the data

Analyzes whether each individual performed in a similar ordifferent manner across conditions

The probability of correctly rejecting afalse

small samples: large samples

estimated standard deviation of a sample distribution

Its really true but you say its false

You can test the null hypothesis for a single sample when the populationvariance is known

The study of likelihood and uncertainty; the number of ways aparticular outcome can occur

predicts no difference in two sets of data

no differences in pets of students, Spring of2024, that bury bones and those that do not bury bones

to say theres NO significant difference in the groups but there really IS

t draws conclusions about a population based on data collected from the sample

The process of determining whether a hypothesis is supportedby the results of a research study

compares the sample MEAN to the population MEAN.

test that involves making assumptions about estimates of population characteristics. The z test and the t test

type of alternative hypothesis where reseaercher predicts the direction

probability of a series of outcomes happeneing at the same time

We can compare a sample group to the population

either above OR below

uses student's t distribution,