Ask questions and get helpful responses.

statistics

In your sample of 23 art students and 30 economics students, the mean amount that a group of economics students like statistics is 26, while the mean amount that a group of art students like statistics is 15. The variance in the economic group is 4.2, while the variance in the art group is 10.3.
Calculate your test statistic for finding whether the groups differ in how much they like statistics.

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
  1. Z = (mean1 - mean2)/standard error (SE) of difference between means

    SEdiff = √(SEmean1^2 + SEmean2^2)

    SEm = SD/√n

    If only one SD is provided, you can use just that to determine SEdiff.

    Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability that they will differ.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  2. 15.19

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Respond to this Question

First Name

Your Response

Still need help? You can ask a new question.