Question 29 2 pts (2 points) Scores on a standardized test from a sample of students from North High school and South High School are summarized below. Average score Standard deviation n North High 140 15 88 South High 135 26 64 What is the lower bound for the 90% confidence interval for the mean score at North High School?(2 points) Scores on a standardized test from a sample of students from North High school and South High School are summarized below. Average score Standard deviation n North High 140 15 88 South High 135 26 64 What is the t statistic for the test if South High student's average test score is significantly different from 120?Question 31 2 pts (2 points) Scores on a standardized test from a sample of students from North High school and South High School are summarized below. Average score Standard deviation n North High 140 15 88 South High 135 26 64 What is the absolute value of the t statistic used to test if the average test scores at North High and South High are significantly different?Question 32 2 pts (2 points) Scores on a standardized test from a sample of students from North High school and South High School are summarized below. Average score Standard deviation n North High 140 15 88 South High 135 26 64 What is the upper bound for the 99% confidence interval for the difference in the average scores of students at the two high schools? Report the upper bound for the difference Ysouth - YNorth