Describe how the researcher should apply the five basic steps ina statistical study. ( Assume that all the people in the pollanswered truthfully).
The percentage of workers that drink coffee or tea
a. The population is all workers. The researcher wants toestimate the percentage in this population that do not drink coffeeor tea.
B. The population is all workers. The researcher wants toestimate the percentage in this population that drink coffee ortea.
C. The population is all workers that do not drink coffee ortea. The researcher wants to estimate the number in this populationthat drink coffee or tea.
D. The population is all workers that drink coffee or tea. Theresearcher wants to estimate the number in this population thatdrink coffee or tea.
Determine how to apply the second basic step in a statisticalstudy in this situation.
A. The researchers should only gather raw data from workers thatdrink coffee or tea.
B. the researcher should gather data about drinking coffee ortea from the largest sample of workers from which the researchercan gather data.
C. the researcher should only gather raw data from workers thatdo not drink coffee or tea
D. the researcher should gather raw data from all the workersabout whether or not they drink coffee or tea.
Determine how to apply the third step in the statistical studyin this situation:
A. the sample statistic of interest is the number of workers inthe sample that do not drink coffee or tea.
B. The sample statistic of interest in the percentage of workersin the sample that do not drink coffee or tea
C. the sample statistic of interest is the percentage of workersin the sample that drink coffee or tea
D. the sample statistic of interest is the number of workers inthe sample that drink coffee or tea
Determine how to apply the fourth basic step in the statisticalstudy in this situation.
A. If the researcher followed correct procedures, he or she canbe confident that the sample statistics is equal to the percentageof workers in the population that drink coffee or tea
B. the researcher should use the sample statistic as an estimatefor the population value of the percentage of workers that drinkcoffee or tea and then use the methods of statistics to determinehow good that estimate is.
C. If the percentage of workers that drink coffee or tea isgreater than 50% in the sample, the researcher can be confidentthat all workers drink coffee or tea
D. The sample statistics provides no useful information to theresearcher in this situation
Determine how to apply the fifth basic step in the statisticalstudy in this situation.
A. the researcher should use the methods of the statistics todetermine the quality of the estimate of the population parameterand draw conclusions based on this estimate accordingly.
B. the researcher knows that the sample static is equal to thepopulation parameter, so he or she may draw conclusion withcomplete confidence.
C. there is no way to determine how well the sample statisticestimates the population parameter,
D. the researcher cannot draw any conclusion based on the valueof the sample statistic.
