The part of the observed group differences that is due to the unique characteristics of the sample the researcher selected is called _______________.

You collect information regarding the number of domestic violence cases in Madison County and Fayette County. You run the appropriate statistical analysis and get the following results: mean cases in Madison County = 300, mean cases in Fayette County = 375, standard deviation of Madison County = 5.14, standard deviation of Fayette County = 6.01, significance of the Levene statistic = .896, t = 3.123, p-value = .015. Would you reject or fail to reject the null hypothesis of no difference in the mean number of domestic violence cases between the two counties?

You run a Chi-Square Goodness-of-Fit Test and get an "Asympt. Sig." value of .027. Is there a statistically significant difference between the observed and expected frequencies of the independent variable?

___________________ are succinct testable statements about relationships between variables.

A __________________ is a list of units in the population from which you will choose your sample.

If you do not have a sampling frame, you might be able to create one by using _____________________.

What type of statistical test would you conduct if you want to determine if the mean number of self-reported delinquent acts from a sample of Madison County middle school students is significantly different from the national average?

A __________________ occurs when the researcher fails to reject a null hypothesis that really is false.

What statistical test would you conduct if you wanted to test for significant differences between the observed and expected joint-frequency patterns of two categorical variables?

Since population data are usually unknown and must be estimated from the sample, the mean for some variable from a sample is computed. This sample mean is also known as the ______________.

A theoretical, probabilistic distribution of all possible sample outcomes for a given sample size is known as the __________________.

What statistical test would you conduct if you wanted to compare the mean number of domestic violence cases in Madison County to the mean number of domestic violence cases in Fayette County?

The primary goal of probability sampling techniques is to achieve _____________.

The idea that repeated random samples of a certain size drawn from a normally distributed population will have a sampling distribution of means that will be normally distributed is also known as _______________.

The dependent variable for any t-Test must be measured at the _________________ level.

Using a preset alpha of .05, you conduct a study of 500 Madison County middle school students to see if their average number of self-reported delinquent acts is significantly different from the national average of 5. You run the appropriate statistical test and find that the average for your sample is 4.3, the mean difference is 0.7, and the p-value is .350.Would you reject or fail to reject the null hypothesis?

The __________________ is always a statement of no difference or no relationship.

You are interested in comparing the mean number of reported property crimes per day in Madison County before and after a new community policing program went into effect. You collect the data, run the appropriate analysis, and get the following results: mean property crimes before program = 3.1, mean number property crimes after program = 2.8, mean difference = 0.3, standard deviation of the mean difference = .014, t = 1.987, p-value = .091. Is there a significant difference in the number of reported property crimes before and after the new community policing programs?

Which of the following makes the random sampling process more efficient and is best to use when selecting a large sample by hand?

You collect information regarding the number of domestic violence cases in Madison County and Fayette County. You run the appropriate statistical analysis and get the following results: mean cases in Madison County = 300, mean cases in Fayette County = 375, standard deviation of Madison County = 5.14, standard deviation of Fayette County = 6.01, significance of the Levene statistic = .896, t = 3.123, p-value = .015. Can we assume equal variances in this analysis?

You are interested in studying whether gang members (measured as yes or no) are more likely than non-gang members to receive prison sentences (measured as yes or no). You run a Chi-Square Test for Independence and get the following results: Chi-Square = 4.14, Asympt. Sig. = .300. Is the observed joint-frequency pattern significantly different from the expected joint-frequency pattern?

The _______________________ is the most important theorem in statistics. It states that when repeated random samples of a particular size are drawn from any shaped population distribution, the sampling distribution of sample means will approach normality as the sample size increases.

The ____________________ is used to determine if the observed frequencies across the categories of one categorical variable differ from the expected distribution of frequencies.

__________________ is the purest form of sampling based on randomization and is the most desirable form of sampling to use.

Using a preset alpha of .05, you conduct a study of 500 Madison County middle school students to see if their average number of self-reported delinquent acts is significantly different from the national average of 5. You run the appropriate statistical test and find that the average for your sample is 4.3, the mean difference is 0.7, and the p-value is .350.What is the "test value"?

______________ is the individual differences component that varies from sample to sample.

In a Chi-Square Goodness-of-Fit Test, the _________________ shows the difference between the observed and expected values.

Dividing the number of cases in the population by the desired sample size results in a _____________.

The ____________________ states that there is a statistically significant difference or that there is a relationship between variables.

You collect information regarding the number of domestic violence cases in Madison County and Fayette County. You run the appropriate statistical analysis and get the following results: mean cases in Madison County = 300, mean cases in Fayette County = 375, standard deviation of Madison County = 5.14, standard deviation of Fayette County = 6.01, significance of the Levene statistic = .896, t = 3.123, p-value = .015. Is there a significant difference in the mean number of domestic violence cases in these two counties?

You are interested in studying whether gang members (measured as yes or no) are more likely than non-gang members to receive prison sentences (measured as yes or no). You run a Chi-Square Test for Independence and get the following results: Chi-Square = 4.14, Asympt. Sig. = .300.What size crosstab would be created for this analysis?

The range of sample means, or the _______________, tell us the range of sample mean values that would have a high probability of containing the true population mean.

What statistical test would you conduct if you wanted to compare the mean number reported property crimes in Madison County before and after a new community policing program went into effect?

Reliable differences, also known as _______________, are differences that can be expected to be observed repeatedly across different samples in different studies measuring the same relationship.

_______________ represents the probability of incorrectly rejecting a true null hypothesis.