Essay
A statistics course at a large university is taught in each semester. A student has noticed that the students in semester 1 and semester 2 are enrolled in different degrees. To investigate, the student takes a random sample of 25 students from semester 1 and 25 students from semester 2 and records their final marks (%) provided in the table below. Excel was used to generate descriptive statistics on each sample.
Assume that student final marks are normally distributed in each semester. 
Estimate and interpret a 90% confidence interval of the ratio of population variances of final student marks from semester 1 and semester 2.
Correct Answer:
Verified
LCL =
(179.43/157.96)x(1/1.98)...View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
Correct Answer:
Verified
(179.43/157.96)x(1/1.98)...View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
Q11: When the necessary conditions are met,
Q12: The irradiation of food to destroy
Q13: A statistics course at a large university
Q14: If a sample of size 300
Q15: Videocassette recorder (VCR) tapes are designed
Q17: A sample of size 300 had 96
Q18: A statistics course at a large university
Q19: When the necessary conditions are met,
Q20: In testing the hypotheses: H<sub>0</sub> :
Q21: In constructing a 90% confidence interval