An educational psychologist develops a new math program she believes will accelerate arithmetic skills in a population of at-risk students in 2nd grade. The researcher decides to determine if the sample’s scores on an arithmetic test exceeded the population average for at-risk math students. a. Formulate a H0 and a H1 for a non-directional test using BOTH symbols and words. b. Formulate a H0 and a H1 for a directional test using BOTH symbols and words.

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 6CT: Name the type of reasoning used in the following scenario. While shopping for a new television,...
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An educational psychologist develops a new math program she believes will accelerate arithmetic skills in a population of at-risk students in 2nd grade. The researcher decides to determine if the sample’s scores on an arithmetic test exceeded the population average for at-risk math students. a. Formulate a H0 and a H1 for a non-directional test using BOTH symbols and words. b. Formulate a H0 and a H1 for a directional test using BOTH symbols and words.

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