is an interviewing method in which a mall interviewer intercepts and directs willing respondents to nearby computers where each respondent reads questions off a computer screen and directly keys his or her answers into the computer. a. Central-location interviewing
b. Computer-assisted personal interviewing
c. Computer-assisted self-interviewing
d. Primary interviewing
e. secondary interviewing

The wall street journal reported that walmart stores inc. is planning to lay off 2,300 employees at its sam's club warehouse unit. approximately half of the layoffs will be hourly employees (the wall street journal, january 25-26, 2014). suppose the following data represent the percentage of hourly employees laid off for 15 sam's club stores. 55 56 44 43 44 56 60 62 57 45 36 38 50 69 65 (a) compute the mean and median percentage of hourly employees being laid off at these stores. (b) compute the first and third quartiles. (c) compute the range and interquartile range. (d) compute the variance and standard deviation. (e) do the data contain any outliers? (f) based on the sample data, does it appear that walmart is meeting its goal for reducing the number of hourly employees?

Russell's study compared gpa of those students who volunteered for academic study skills training and those who did not elect to take the training. he found that those who had the training also had higher gpa. with which validity threat should russell be most concerned?

According to the video, the gross national product had declined from $104 billion in 1929 to about in 1933.