Explore BrainMass

Explore BrainMass

    Coefficient for variation for dopamine levels in rats

    Not what you're looking for? Search our solutions OR ask your own Custom question.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    A pharmacologist measured the amount of dopamine in the brain of each of seven rats. The dopamine levels (nmol/g) were was follows:
    6.8 5.3 6.0 5.9 6.8 7.4 6.2

    a) Calculate the mean and deviation
    b) Determine the median and the interquartile range
    c) Calculate the coefficient of variation
    d) Replace the oberservation 7.4 by 10.4 and repeat parts a) and b) Which of the descriptive measures display resistance and which do not?

    © BrainMass Inc. brainmass.com March 4, 2021, 10:35 pm ad1c9bdddf
    https://brainmass.com/statistics/central-tendency/coefficient-variation-dopamine-levels-rats-343494

    Solution Preview

    Answer

    X

    5.30 1.04
    Q1 5.90 0.44
    6.00 0.34
    Median 6.20 0.14
    6.80 0.46
    Q3 6.80 0.46
    7.40 1.06
    Sum 44.40 Sum 3.94
    SS 284.58 MD 0.56
    Mean 6.34 CV 10.25
    Var 0.42
    SD 0.65

    a) Mean = = ...

    Solution Summary

    The expert determines the coefficient for variation for dopamine levels in rats.

    $2.49

    ADVERTISEMENT