A researcher has changed the alpha value from α = .05 to α = .01 for his study. What impact will this have?

Calculate the raw score given the following information. Z = 2.5, M = 50, and the standard deviation = 5

Two scores are recorded for a sample of n = 5 participants. Find  ΣX + ΣY (sigma X plus sigma y). . Subject            X         Y            1          3          2            2          3          6            3          8          2            4          1          5            5          0          1

A researcher is using a repeated-measures design to test for mean differences among four treatment conditions.  If the data for this study consist of 10 scores in each treatment, then how many subjects participated in the study?

For an ANOVA, what is the expected value for the F-ratio when the null hypothesis is true?

A population distribution has s = 6.  What position in this distribution is identified by a z-score of z = +2.00?

Calculate the raw score given the following information. Z = 2.5, M = 50, and the standard deviation = 5

A sample of n = 6 scores has a mean of M = 5.  One person with a score of X = 12 is added to the distribution.  What is the mean for the new set of scores?

Over the course of a semester, eight students take their exams with Essential Oil Blend 1 being diffused in the testing area during Exam 1, Essential Oil Blend 2 during Exam 2, and Essential Oil Blend 3 during Exam 3. What is the dfWithin Groups for the ANOVA hypothesis test?

For an ANOVA, what is the expected value for the F-ratio when the null hypothesis is true?