A chewing gum manufacturer wants to determine whether blue p…

A chewing gum manufacturer wants to determine whether blue packaging or red packaging is preferred. The company performs a sales test by introducing red packages into an independent, random sample of ten stores and blue packages are introduced in an independent, random sample of another ten stores. The technique most appropriate for analyzing the data is:

As a researcher, you must also be on the alert to spot ‘comp…

As a researcher, you must also be on the alert to spot ‘completed’ questionnaires that don’t really have true responses. Consider, for example, a respondent who checked the “5” position on a five-point scale for each of the 20 items in an attitude questionnaire, even though some items were expressed negatively and some positively.  Examining the questionnaire in this manner, “the process of checking and adjusting data for omissions, consistency, and legibility”, occurs during which state of data preparation?

Based upon previous sales figures (an external benchmark), a…

Based upon previous sales figures (an external benchmark), a sales manager wants to determine whether her salespeople could realistically achieve average sales significantly greater than $75,000. The manager gathered data on level of sales achieved by each of her twenty salespeople. She conducted the following statistical test with these results: One-Sample Statistics   N Mean Std. Deviation Std. Error Mean Sales 20 75500.00 18968.11729 4241.39997   One-Sample Test Test Value = 75000   t df Sig. (2-tailed) Mean Difference 95% Confidence Interval of the Difference – Lower 95% Confidence Interval of the Difference – Upper Sales .118 19 .907 500.00 -8377.3522 9377.3522   If you have trouble reading the table, here is the information it contains in text form:  One-Sample Statistics for Sales N = 20 Mean = 75500.00 Std. Deviation = 18968.11729 Std. Error Mean = 4241.39997 One Sample Test for Sales Test Value = 75000 t = .118 df = 19 Sig. (2-tailed) = .907 Mean Difference = 500.00 95% Confidence Interval of the Difference – Lower = -8377.3522 95% Confidence Interval of the Difference – Upper = 9377.3522 What would be an appropriate conclusion drawn from the results of the statistical analysis?

What is the appropriate statistical test to use to answer th…

What is the appropriate statistical test to use to answer the following question? “Is the average household income in zip code 22030 greater than $149,000?” Hint: $149,000 was the average household income in that zip code according to the 2020 census (an external benchmark).