Reading interventions - Jasmine is a reading curriculum specialist for a large urban school district. She regularly conducts pilot studies of promising educational programs to determine if they should be implemented throughout the district. During fall term last year, she randomly selected a group of 24 eighth graders at a large middle school to participate in a supplemental tutoring program. Call this group the “Fall Cohort." At the end of the term the Fall Cohort students were evaluated using a standardized test. The sample mean score for the 24 students was 67.88 points with a standard deviation of 14.86 points. Historically, scores for students in the district on this assessment have been normally distributed with a mean of 62.7 points. Jasmine wants to use statistical inference to determine if mean scores on this exam for students in the Fall Cohort are higher than the historical mean. Round all calculated values to 4 decimal places. 1. Which set of hypotheses statements below should Jasmine use to answer her research question? OA. Ho: = 62.7 vs. HA: > 67.88 OB. Ho: µ = 62.7 vs. HA: µ > 62.7 OC. Ho: H = 62.7 vs. HA: š > 67.88
Reading interventions - Jasmine is a reading curriculum specialist for a large urban school district. She regularly conducts pilot studies of promising educational programs to determine if they should be implemented throughout the district. During fall term last year, she randomly selected a group of 24 eighth graders at a large middle school to participate in a supplemental tutoring program. Call this group the “Fall Cohort." At the end of the term the Fall Cohort students were evaluated using a standardized test. The sample mean score for the 24 students was 67.88 points with a standard deviation of 14.86 points. Historically, scores for students in the district on this assessment have been normally distributed with a mean of 62.7 points. Jasmine wants to use statistical inference to determine if mean scores on this exam for students in the Fall Cohort are higher than the historical mean. Round all calculated values to 4 decimal places. 1. Which set of hypotheses statements below should Jasmine use to answer her research question? OA. Ho: = 62.7 vs. HA: > 67.88 OB. Ho: µ = 62.7 vs. HA: µ > 62.7 OC. Ho: H = 62.7 vs. HA: š > 67.88
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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