QUESTION 1 The chart to your right (downloadable as an excel file on the course

Question

QUESTION 1 The chart to your right (downloadable as an excel file on the course page) contains the age, gender, and score for eight Participant Age Gender Score Abe Brenda Carlota Diana 15 Male 85 15 Female 6 Female 73 cipants in a fictional study Identify the most appropriate measure of central tendency for each variable. Then calculate 17 Female 92 18 Male 19 Erain 81 that measure and explain why Harriet74 Female 68 you chose it. Isabel 75 Female 84 QUESTION 2 You read a study about a new intervention designed to increase the number of positive interactions parents have with Participant Increase in Positive Daily their children. The author makes the following claim:"Our data indicates our intervention has a dramatic impact on the number of interactions parents have with their n average, paeir Caxlota Diana children. On average, parents had 3 more positive daily interactions with their children after our intervention than before rain Gabriel Harriet Isabel Review the raw data (on the right and downloadable as an excel file on the course page) and evaluate the author's claim. How true is her claim? Explain your

Explanation / Answer

SOLUTION 1 : Since the variable Age contains outlier values, median is preferred as the measure of central tendency. So the median for Age is : (17+18)/2 = 17.5.
For the variable score, mean is the measure of central tendency since all the values uniformly lie in the range 60 to 100. Mean for Score is : 618/8 = 77.25.
And other variables are categorical variables for which central tendency measures do not exist as such.

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.