Recall that the researchers reported the mean and the standard deviation of the anxiety scale for the sample (M= 33.56, SD = 19.40) as well as for the population (µ = 14.20, o = 9.70), and that the sample size was N= 92. As mentioned on a previous screen, the researchers reported, “A single sample z test revealed that the average score on the SCAS-P for the sample of children with AS significantly differed from the mean of the normative sample, z= 19.15, p< .05" (pp. 364–365). One assumption when performing a z test is that scores in the underlying population from which the sample is drawn are approximately normally distributed. These researchers did not report any tests of this assumption. Let's assume the worst-case scenario-that the anxiety scores in the population are not normally distributed.
Recall that the researchers reported the mean and the standard deviation of the anxiety scale for the sample (M= 33.56, SD = 19.40) as well as for the population (µ = 14.20, o = 9.70), and that the sample size was N= 92. As mentioned on a previous screen, the researchers reported, “A single sample z test revealed that the average score on the SCAS-P for the sample of children with AS significantly differed from the mean of the normative sample, z= 19.15, p< .05" (pp. 364–365). One assumption when performing a z test is that scores in the underlying population from which the sample is drawn are approximately normally distributed. These researchers did not report any tests of this assumption. Let's assume the worst-case scenario-that the anxiety scores in the population are not normally distributed.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
Related questions
Question
4
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill