students math scores They believe the improvement in math

Last updated: 4/7/2024

students math scores They believe the improvement in math scores is normally distributed with 4 points A sample of 25 students is randomly selected and their math scores are measured before and after the new teaching method is implemented The sample standard deviation of the differences in math scores is 5 2 points Does the school district have evidence to support their assumed standard deviation of 4 points Use critical values of X975 and X0 025 a 95 window i Find the value of the test statistic for this sample and the two critical values ii X6 975 x X0 025 Does the school district have evidence to support their assumed standard deviation of 4 points Circle YES or NO and briefly explain your answer YES