2. A Flemish student organisation claims that the average undergraduate student loan debt at university in the capital Brussels is near to 12,500€. From previous analyses it is known that standard deviation of the population of student loan debts is 1800€. The dean of the university doubts that the claim of the student organisation is correct. She th in reality the average undergraduate student loan debt at their institution is less than 12500€, decides to substantiate her suspicion via statistical hypothesis testing. As the level of significance for the test she chooses 5%. a. What will be the null hypothesis of the test? And what is the alternative hypothesis? The dean asks an assistant to send out an email questionnaire to a randomly chosen group of 31 undergraduate students. The received answers show an average debt of 11810€. b. Calculate the p-value for the sample. c. What will be the dean's conclusion? Why? d. Determine a 95% confidence interval for the average undergraduate student loan debt.

2. A Flemish student organisation claims that the average undergraduate student loan debt at university in the capital Brussels is near to 12,500€. From previous analyses it is known that standard deviation of the population of student loan debts is 1800€. The dean of the university doubts that the claim of the student organisation is correct. She th in reality the average undergraduate student loan debt at their institution is less than 12500€, decides to substantiate her suspicion via statistical hypothesis testing. As the level of significance for the test she chooses 5%. a. What will be the null hypothesis of the test? And what is the alternative hypothesis? The dean asks an assistant to send out an email questionnaire to a randomly chosen group of 31 undergraduate students. The received answers show an average debt of 11810€. b. Calculate the p-value for the sample. c. What will be the dean's conclusion? Why? d. Determine a 95% confidence interval for the average undergraduate student loan debt.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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