# Study sets matching "statistics chapter 7"

Study sets

Diagrams

Classes

Users

sampling error

parameter

simple random sample

population mean

the difference between a measure computer from a sample (a sta…

a measure computed from the entire population. As long as the…

a simple selected in such a manner that each possible sample o…

sampling error

the difference between a measure computer from a sample (a sta…

parameter

a measure computed from the entire population. As long as the…

parameter (think "parameter" begins wit…

statistic (think "samle" begins with a…

sampling distribution of a statistic

biased

a number that describes some characteristic of the population…

a number that describes some characteristic of a sample (typic…

the distribution of values taken by the statistic in all possi…

not estimating the true center well

parameter (think "parameter" begins wit…

a number that describes some characteristic of the population…

statistic (think "samle" begins with a…

a number that describes some characteristic of a sample (typic…

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What do we use from a sample to draw co…

We take samples from a ______________

A statistic helps us build the ________…

X(bar) and P(hat) are good when they ar…

Statistic

Population distribution

Sampling distribution

centered; variability

What do we use from a sample to draw co…

Statistic

We take samples from a ______________

Population distribution

parameter

statistic

sampling variability

sampling distribution

a number that describes some characteristics of the population

a number that describes some characteristic of a sample

value of a statistic varies in repeated random sampling

the distribution of values taken by the statistic in all possi…

parameter

a number that describes some characteristics of the population

statistic

a number that describes some characteristic of a sample

data set

range

mean

median

all the data collected in a particular study

Distance between highest and lowest scores in a set of data.

the AVERAGE of a set of data; add them all up and divide the s…

,Statistics: Mean, Median, Mode, Range, Graphing Data

data set

all the data collected in a particular study

range

Distance between highest and lowest scores in a set of data.

Point Estimate

Confidence Interval

Confidence Level

Critical Value

A single value (or point) that is used to estimate a populatio…

A range of values used to estimate a population parameter.

The probability of 1- alpha, that the confidence interval actu…

The number on the borderline separating unlikely values from t…

Point Estimate

A single value (or point) that is used to estimate a populatio…

Confidence Interval

A range of values used to estimate a population parameter.

Parameter

Statistic

Sampling variability

Population distribution

a number that describes some characteristic of the population;…

a number that describes some characteristic of a sample; often…

the value of a statistic varies in repeated random sampling

describes individuals

Parameter

a number that describes some characteristic of the population;…

Statistic

a number that describes some characteristic of a sample; often…

parameter (p and p)

statistic (s and s)

sampling variability

sampling distribution of a statistic

a number that describes some characteristics of the population…

a number that describes some characteristic of a sample (x bar…

the value of a statistic varies in repeated random sampling -…

is the distribution of values taken by the statistic in all po…

parameter (p and p)

a number that describes some characteristics of the population…

statistic (s and s)

a number that describes some characteristic of a sample (x bar…

Institutional Review Board

informed consent

confidential

anonymity

-The organization that carries out the study must have this th…

Type of consent a subject must give, usually in writing, befor…

-All individual data must be kept confidential. Only statistic…

When subjects names are not known even to the director of the…

Institutional Review Board

-The organization that carries out the study must have this th…

informed consent

Type of consent a subject must give, usually in writing, befor…

Determine whether the numerical value i…

Determine whether the numerical value i…

Determine whether the numerical value i…

Determine whether the numerical value i…

STATISTIC - the value $68,000 is a numerical description of a…

STATISTIC - the value of 38% is a numerical description of a S…

PARAMETER - the 62 surviving passengers out of 97 total passen…

PARAMETER - the value of 60% is a numerical description of the…

Determine whether the numerical value i…

STATISTIC - the value $68,000 is a numerical description of a…

Determine whether the numerical value i…

STATISTIC - the value of 38% is a numerical description of a S…

Perfect "r"

Correlation Little Strength

Correlation Low Strength

Correlation Moderate Strength

Strength/Direction, Larger the r value stronger correlation

0.00-0.25

0.26-0.49

0.50-0.69

Perfect "r"

Strength/Direction, Larger the r value stronger correlation

Correlation Little Strength

0.00-0.25

Parameter

Statistic

Population v. Sample Notation

Sampling Variability

A parameter is a number that describes some characteristic of…

A statistic is a number that describes some characteristic of…

The value of a statistic varies in repeated random sampling.…

Parameter

A parameter is a number that describes some characteristic of…

Statistic

A statistic is a number that describes some characteristic of…

calculated test statistic

critical region

critical value

hypothesis

The result of a hypothesis-testing procedure; the value that i…

The portion of a sampling distribution that contains all the v…

The point on a sampling distribution that marks the beginning…

A statement of expectations.

calculated test statistic

The result of a hypothesis-testing procedure; the value that i…

critical region

The portion of a sampling distribution that contains all the v…

Alpha

Bias

Confidence interval

Confidence level

the probability of error, or the probability that a confidence…

a criterion used to select sample statistics as estimators. a…

an estimate of a population value in which a range of values i…

a frequently used alternate way of expressing alpha, the proba…

Alpha

the probability of error, or the probability that a confidence…

Bias

a criterion used to select sample statistics as estimators. a…

random variable

discrete

continuous

probability distribution of a discrete…

a numerical variable whose value is determined by the outcome…

can count, isolated points on number line

measured, includes entire interval on number line

gives the probability associated with each x value (formula, t…

random variable

a numerical variable whose value is determined by the outcome…

discrete

can count, isolated points on number line

Hypothesis

Test Statistic

Null Hypothesis

Alternative Hypothesis

statement made about the value of a population parameter

the result of the experiment or the statistic that is calculat…

hypothesis that you assume to be correct

tells you about the parameter if your assumption is shown to b…

Hypothesis

statement made about the value of a population parameter

Test Statistic

the result of the experiment or the statistic that is calculat…

Parameter

Statistic

Statistic

Parameter

Mark retired from competitive athletics last year. In his care…

In a survey conducted in town of Atherton 28% of adult respond…

A study of 3300 college students in the cit of Pemblington fou…

26.2 of the mayors of cities in a certain state are from minor…

Parameter

Mark retired from competitive athletics last year. In his care…

Statistic

In a survey conducted in town of Atherton 28% of adult respond…

random variable

discrete

continuous

probability distribution of a discrete…

a numerical variable whose value is determined by the outcome…

can count, isolated points on number line

measured, includes entire interval on number line

gives the probability associated with each x value (formula, t…

random variable

a numerical variable whose value is determined by the outcome…

discrete

can count, isolated points on number line

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ethical

fake

wrong

institutional review board

The production and use of data like all human endeavors, raise…

few researches, in the pursuit of professional advancement, pu…

There is no ethical question here- faking data to advance your…

this decides if things are ethical to let the research go on.…

ethical

The production and use of data like all human endeavors, raise…

fake

few researches, in the pursuit of professional advancement, pu…

assumptions

chi-square distribution

confidence interval

confidence level

techniques that must be met before valid conclusions can be ob…

a probability distribution obtained from the values of (n-1)s^…

a specific interval estimate of parameter determined by using…

the probability that a parameter lies within the specified int…

assumptions

techniques that must be met before valid conclusions can be ob…

chi-square distribution

a probability distribution obtained from the values of (n-1)s^…

Statistic

Parameter

Sampling Variability

Sampling Distribution

A numerical representation of a characteristic of a sample.

A numerical representation of a characteristic of a population.

How much the statistic varies between samples... it's based of…

A graph of a statistic for all possible sample data sets.

Statistic

A numerical representation of a characteristic of a sample.

Parameter

A numerical representation of a characteristic of a population.

Scatterplots

Association

Outlier

Response variable, Explanatory variable…

A scatterplot shows the relationship between two quantitative…

Direction: A positive direction or association means that, in…

A point that does not fit the overall pattern seen in the scat…

In a scatterplot, you must choose a role for each variable. As…

Scatterplots

A scatterplot shows the relationship between two quantitative…

Association

Direction: A positive direction or association means that, in…