PLEASE JUST ONLY ANSWER THE RED QUESTIONS BASED ON THE THE RESULTS ABOVE EACH ONE Document Preview: Exam Problem 1 The sales manager for the Fox News TV station affiliate in a southern Florida city...

PLEASE JUST ONLY ANSWER THE RED QUESTIONS BASED ON THE THE RESULTS ABOVE EACH ONE


Exam Problem 1 The sales manager for the Fox News TV station affiliate in a southern Florida city recently surveyed 20 advertisers and asked each one to rate the service of the station on the following scale: Very Poor Poor Fair Good Very Good 1 2 3 4 5 He also tracked the general time slot when the advertiser's commercials were shown on the station. The following codes were used: 1 = morning2 = afternoon 3 = evening4 = various times. Time Slot Rating   Time Slot Rating 1 4   3 2 1 5   2 4 3 3   3 3 1 4   3 3 1 5   1 4 4 2   1 5 2 4   1 5 1 5   3 1 1 4   4 4 2 4   4 3 Separate frequency distributions Time Slot Frequency Rating Frequency 1 9 1 1 Min 2 3 Min 2 2 1 3 5 1 3 4 Max 4 3 Max 4 8 4 5 5 5 joint frequency distribution. Count of Rating Rating           Time Slot 1 2 3 4 5 Grand Total 1       4 5 9 2   3 3 3 1 1 3 5 4   1 1 1 3 Grand Total 1 2 4 8 5 20 joint relative frequency distribution. Count of Rating Rating           Time Slot 1 2 3 4 5 Grand Total 1 0.00% 0.00% 0.00% 20.00% 25.00% 45.00% 2 0.00% 0.00% 0.00% 15.00% 0.00% 15.00% 3 5.00% 5.00% 15.00% 0.00% 0.00% 25.00% 4 0.00% 5.00% 5.00% 5.00% 0.00% 15.00% Grand Total 5.00% 10.00% 20.00% 40.00% 25.00% 100.00% a) Write a detailed paragraph on the implications of the results (100-200 words). Note: Answer in the context of the problem. Exam Problem 2 The manager of the Cottonwood Grille recently selected a random sample of 18 customers and kept track of how long the customers were required to wait from the time they arrived at the restaurant until they were actually served dinner. This study resulted from several complaints the manager had received from customers saying that their wait time was unduly long and that it appeared that the objective was to keep people waiting in the lounge for as long as possible to increase the lounge business. The following data were recorded, with time measured in minutes: 34 24 43 56 74 20 19 33 55 43 54 34 27 34 36 24 54 39 mean, median, mode, minimum, maximum, range, first quartile, third quartile, interquartile range, variance, standard deviation, and coefficient of variation of waiting time for this sample of customers using MINITAB. ————— 5/5/2012 11:34:18 PM ———————————————————— Welcome to Minitab, press F1 for help. Descriptive Statistics: C1 Variable Mean StDev Variance CoefVar Minimum Q1 Median Q3 C1 39.06 14.81 219.23 37.91 19.00 26.25 35.00 54.00 N for Variable Maximum Range IQR Mode Mode C1 74.00 55.00 27.75 34 3 a) The manager is considering giving a complementary drink to customers whose waiting time is longer that the third quartile. Determine the minimum number of minutes a customer would have to wait in order to receive a complementary drink.