Paired (dependent) two sample t-test (Chapter 9): Sample Exam Problem 6
Note: The following problem is taken from the Final Exam in Spring 2003,version A, questions 5-7.
A recent commercial claims that the international phone call rates o
One sample z-test (Chapter 8): Sample Exam Problem 1
Note: The following problem is taken from the Mid-term Exam in Spring2002, questions 1-6.
The Caribbean boasts of inexpensive weddings. From past data, the average cost of a wedding is
Test on one population proportion (Chapter 10): Sample Exam Problem 7
Note: The following problem is taken from the Mid-term Exam in Spring 2002, questions 15-18.
The Vice President of Dorite Energy believes that less than 60% of the shar