Exam 12: Sampling: Final and Initial Sample Size Determination

Which method of improving response rate involves sending potential respondents a postcard or letter to remind nonrespondents to complete and return the questionnaire?

Creative Research Systems (www.surveysystem.com)is a Web sites on the Internet that offer free use of sample size and/or confidence interval calculator.

The equation for a 95% confidence interval is: ________.

The number of units that will have to be sampled will be determined by the ________.

Which method of adjusting for nonresponse involves evaluating the likely effects of nonresponse based on experience and available information?

Prepaid incentives have been shown to increase response rates to a greater extent than promised incentives.

The percentage of qualified respondents who complete the interview is the ________.

The mathematical symbols "π" and "p" represent a ________ for the population and the sampling distribution respectively.

A recent study indicated that consumers prefer ________ surveys versus the ________ method of surveys.

When conducting marketing research in foreign countries,statistical estimation of sample size may be difficult as estimates of the population mean may be unavailable.

Suppose a simple random sample of five hospitals is to be drawn from a population of 20 hospitals.There are 15,504 different samples of size 5 that can be drawn.The relative frequency distribution of the values of the mean of these 15,504 different samples would specify the ________ of the mean.

The sampling distribution is the probability of the values of a sampling statistic computed for each possible sample that could be drawn from the target population under a specified sampling plan.

In the statistical approach to determining sample size,the precision level is specified in the end.

Discuss sample size determination in the context of mobile marketing research.

Which statement is not true about nonresponse issues in sampling?

The confidence interval approach to sample size determination is based on the construction of confidence intervals around the means or proportions using the standardized variate formula.

Because low response rates increase the probability of response bias,an attempt should always be made to improve the response rate.

Specify the level of confidence is the first step in the confidence interval approach to determining sample size.

Which equation is the correct equation for determining the initial sample size?

If statistical estimation of sample size is at all attempted,it should be realized that the estimates of the population variance don't vary from country to country.