Exam 12: Using Basic Descriptive Analysis Performing Population Estimates and Testing Hypotheses

When a researcher creates the raw percentages,then computes cumulative percentages and,by inspecting these,finds where the 50-50 break occurs,they are using which type of descriptive analysis?

The hypothesized population parameter value can be determined using a percentage,mean,or a median.

With a nominal scale,the ________ is the appropriate measure of central tendency,and variation must be assessed by looking at the distribution of responses across the various response categories.

When ________ are encountered by marketing researchers,the marketing researcher performs the appropriate hypothesis test and interprets the findings.

If standard deviation is small,distribution is greatly compressed.With a large standard deviation value,the distribution is consequently stretched out at both ends.

What is hypothesis testing? How can a researcher use the sample findings to test a hypothesis about a mean or a percentage?

Detailed confidence intervals are typically not reported.

There are several tools in descriptive analysis available to the researcher to summarize the data obtained from a sample of respondents.How is descriptive analysis performed?

Statistical inference procedures are the indirect linkages between probability sample design and data analysis.

Non-scale data are summarized with the following descriptive measures: average,median,mode,standard deviation,minimum,and maximum.

The set of procedures in which the sample size and sample statistic are used to make an estimate of the corresponding population parameter is called:

Statistics are population values,whereas parameters are corresponding sample values.

Whenever a probability sample is drawn from a population,it is not enough to simply report the sample's descriptive statistics,for these measures contain a certain degree of error due to the sampling process.

A researcher asks the question: "Rank these five brands from your first choice to your fifth choice."Which of the following descriptive statistic would he or she likely use?

A researcher could be examining what percentage of golfers buy only Titleist balls,or might be looking at what percentage of high school students buy from Taco Bell between meals.In either case,the mean or percentage is derived from a sample,so it is:

There are several measures of central tendency.Which of the following is NOT one of those measures?

There are guidelines for presentation of confidence levels.To decide whether or not to use the Findings-Specific Approach,the researcher must answer the following question,"Are there findings that require more than the general case of reporting sample error?"

Descriptive measures are typically used early in the analysis process and become foundations for subsequent analysis.

The basic data analysis goal involved in all measures of central tendency is to report a single piece of information that describes the most typical response to a question.

Inferential statistics include hypothesis testing and estimating approximate population values without using confidence intervals.