Shape of the distribution for the data in study

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1. A researcher records the levels of attraction for various fashion models among college students. He finds that mean levels of attraction are much higher than the median and the mode for these data.

a. What is the shape of the distribution for the data in this study?

The shape distribution is positively skewed

b. What measure of central tendency is most appropriate for describing these data? Why?

The duitable measure of central tendency is median. Level of various college students related to attribute data (ie) qualitative data median is suitable

2. 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.

  1. What are the degrees of freedom for the variance?
  2. Compute the variance and standard deviation (you will have to do this one by hand).

3. State the three empirical rules for a normal distribution with any mean and varaince.

Reference no: EM131671360

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