"Hot Tamales" are chewy, cinna mon-flavored candies. A bulk vending machine is known to dispense, on average, 15 Hot Tamales per bag. Chance (Fall 2000) published an article on a classroom project in which students were required to purchase bags of Hot Tamales from the machine and count the number of candies per bag. One student group claimed it purchased five bags that had the following candy counts: 25, 23, 21, 21, and 20. There was some question as to whether the students had fabricated the data. Use a hypothesis test to gain insight into whether or not the data collected by the students were fabricated. Use a level of significance that gives the benefit of the doubt to the students.
Answer to relevant QuestionsIn each case, determine whether the sample sizes are large enough to conclude that the sampling distribution of (p̂1 - p̂2) is approximately normal. a. n1 = 10, n2 = 12, p̂1 = .50, p̂2 = .50 b. n1 = 10, n2 = 12, p̂1 = ...Angioplasty’s benefits challenged. Each year, more than 1 million heart patients undergo an angioplasty. The benefits of an angioplasty were challenged in a recent study of 2,287 patients (2007 Annual Conference of the ...Refer to the Journal of Deaf Studies and Deaf Education (Fall 2006) paired difference study on vocalized laughter among deaf users of sign language, presented in Exercise. Suppose you want to estimate µd = (µS - µA), the ...Refer to Exercise 9.19. The “fear of negative evaluation” (FNE) scores for the 11 bulimic females and 14 females with normal eating habits are reproduced in the table below and saved in the BULIMIA file. The confidence ...Refer to the Journal of Sport Behavior (2001) study of variety in exercise workouts, presented in Exercise. One group of 40 people varied their exercise routine in workouts, while a second group of 40 exercisers had no set ...
Post your question