Mathematics, 13.02.2020 20:22 gungamer720
A scholar is studying the extent to which people hold egalitarian beliefs. She obtains measurements on a large random sample of U. S. adults. Each respondent is measured along an egalitarianism scale that runs from a raw score of 0 (low egalitarianism) to a raw score of 24 (high egalitarianism). A computer analysis reveals that the mean is equal to 14, with a standard deviation equal to 5.
A. This chapter discussed how to convert a raw value, such as a score on the egalitarianism scale, into a Z score. A Z score is obtained by dividing the raw value’s deviation from the mean by a standard unit. The standard deviation is a standard unit that can be used to convert deviations from the mean into Z scores. Obtain Z scores for each of the following raw egalitarianism scores: 5, 9, 14, 16, and 19.
B. The scholar wants to collapse the scale into four ordinal categories: low egalitarianism, assigned to respondents with Z scores of less than ?1; medium-low egalitarianism, assigned to respondents with Z scores in the range between ?1 through 0; medium-high egalitarianism, for Z scores of greater than 0 through +1; and high egalitarianism, assigned to respondents with Z scores of greater than +1. What are the raw-score ranges for each of the four ordinal categories?
Answers: 3
Mathematics, 22.06.2019 02:20, officialrogerfp3gf2s
Two researchers are attempting to create a new psychotherapy protocol that more reduces panic attacks. they believe that they have succeeded and are now in the clinical trial period of their protocol's development. they are working with several cohort groups, some of which have been through the new protocol, while others have done the standard protocol currently recommended. if these researchers are interested in evaluating the difference in the percentage of test subjects who successfully decreased their panic attacks in 2 months on the new protocol versus the percentage of test subjects who successfully decreased their panic attacks in 2 months with the traditional protocol, which of the following statistical tests would be most appropriate? a. analysis of variance (anova) b. correlation c. chi-square test d. paired t-test e. independent t-test
Answers: 2
A scholar is studying the extent to which people hold egalitarian beliefs. She obtains measurements...
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