statistics

A researcher used an analysis of variance to compare three treatment conditions with
a separate sample of n = 8 participants in each treatment. The results of the analysis are shown
in the following summary. Fill in all missing values in the table. (Hint: Start with the df
values.)

Source SS df MS
Between Treatments ____ ____ ____ F = 4
Within Treatments 63 ____ ____
Total ____ ____

So,the DF is 2, 7 and total is 9 am I correct? Don't know how to get the rest?

  1. 👍 0
  2. 👎 1
  3. 👁 2,879
  1. Here is how to finish your table:

    To calculate df between:
    k - 1 = 3 - 1 = 2
    Note: k = number of levels.

    To calculate df within:
    N - k = 24 - 3 = 21
    Note: N = total number of values in all levels.

    df total = df between + df within = 23

    To calculate MS between:
    SS between/df between = MS between
    Therefore: x/2 = 12; x = 24 (SS between)

    To calculate MS within:
    �SS within/df within = 63/21 = 3

    To calculate F-ratio:
    MS between/MS within = F-ratio
    Therefore: x/3 = 4; x = 12 (MS between)

    SS total = SS between + SS within = 87

    Double check my calculations.

    1. 👍 2
    2. 👎 0
  2. fhj

    1. 👍 0
    2. 👎 1

Respond to this Question

First Name

Your Response

Similar Questions

  1. statistic

    A researcher conducts an experiment comparing three treatment conditions with a separate sample n = 8 in each treatment. An analysis of variance is used to evaluate the data, and the results of the ANOVA are presented in the table

  2. math

    A researcher uses analysis of variance to test for mean differences among three treatments with a sample of n = 12 in each treatment. The F-ratio for this analysis would have what df values?

  3. statistics

    450 people are randomly selected at grocery stores across the state and surveyed on the amount of money they are spending at the store that day. How does finding the sample variance compare to investigating the sampling

  4. statistics

    An analysis of variance is used to evaluate the mean differences for a research study comparing three treatments with a separate sample of n = 6 in each treatment. If the data produce an F-ratio of F = 4.10, then which of the

  1. math

    An organizational psychologist measures levels of job satisfaction in a sample of 30 participants. To measure the variance of job satisfaction, it is calculated that the SS = 120 for this sample. What are the degrees of freedom

  2. elementary statistics

    A statistics professor is used to having a variance in his class grades of no more than 100. He feels that his current group of students is different, and so he examines a random sample of midterm grades (listed below). At 0.05

  3. Statistics - Help!!!

    An independent measures research study compares three treatment conditions using a sample of n=5 in each treatment. For this study, the three samples have SS1=10, SS2=20, SS3= 15. What value would be obtained for MS within?

  4. Statistics

    You are interested in estimating the mean of a population. you plan to take a random sample from the population and use the samples mean as an estimate of population mean. Assuming that the population from which you select your

  1. Statistics

    A researcher is studying the effects of caffeine on exam scores of college students. In this study: What would be the population and sample of this research? Extrapolate your views of the advantages and disadvantages of samples

  2. Statistics

    An independent-measures research study compares three treatment conditions using a sample of n = 5 in each treatment. For this study, the three sample totals are, t1 = 5, t2 = 10, and t3 = 15, and Sum of X squared= 75 for the

  3. STAT

    An independent-measures research study compares three treatment conditions with a sample of n = 10 in each condition. The sample means are M1 = 2, M2 = 3, and M3 = 7 a. Compute SS for the set of 3 treatment means. (Use the three

  4. statistics

    A researcher uses an analysis of variance to test for mean differences among three treatment conditions using a sample of n = 8 participants in each treatment. What degrees of freedom (df) would the F-ratio from this analysis

You can view more similar questions or ask a new question.