Take Home Quiz

Formula Sheet AND Instructions for Quiz 8

Popn Parameter Hypothesis Testing Test Statistic DF n-1

Important Note : This Take Home Quiz 8 is due back promptly at the start of class Monday November 22 . No late quiz accepted please ! Also note that this is part of the Review for Midterm Exam 2 and similar questions should be expected on the Midterm itself . The Standard Normal Distribution table (z-chart ) and the t Distribution table (t-chart ) are needed to complete this assignment

Please clearly show your work to get any credit . Details of

any calculations are required to get full credit . This Quiz is graded over 20 and there are 5 extra- credit points

Exercise 1 (9 points

A business travel magazine wants to classify transatlantic gateway airports according to the mean rating from the population of business travelers . A rating scale with a low score of 0 and a high score of 10 will be used , and airports with a population mean rating greater than 7 will be designated as superior service airports . A sample of 60 business travelers for London 's Heathrow Airport provided a sample mean of 7 .25 Suppose that the population standard deviation 1 .05

Set up the null and alternative hypotheses to test whether the mean rating at London 's Heathrow Airport is greater than 7 (2 points

Null hypothesis (H0 7 London 's Heathrow Airport 's mean rating is equal to 7

Alternative Hypothesis (Ha 7 London 's Heathrow Airport 's mean rating is greater...