Author: Anonymous

Which of the following sets of data would produce the largest value for an independent-measures t statistic?

A population has µ = 50.  What value of s would make X = 55 a central, representative score in the population that is closest to the mean?

A researcher is interested in whether laundry detergent containers contained 100 oz of detergent as claimed by the manufacturer. The researcher collects 100 samples of laundry detergent and measures the amount of detergent. What test is most appropriate to use to analyze this data?

Which of the following actions will always change the value of the mean?

Under what circumstances can a very small treatment effect be statistically significant?

A sample of n = 4 scores has a mean of M = 8.  If one new score with a value of X = 3 is added to the sample, what will be the value for the new mean?

For a sample of n = 30 scores, X = 45 corresponds to z = 1.50 and X = 40 corresponds to z = +1.00.  What are the values for the sample mean and standard deviation?

A population has µ = 50.  What value of s would make X = 55 a central, representative score in the population that is closest to the mean?

Which of these is NOT involved in calculating a one-factor between-subjects ANOVA?

If all the possible random samples with n = 36 scores are selected from a normal population with  µ = 80 and σ = 18, and the mean is calculated for each sample, then what is the average of all the sample means?