A businessman wanted to compare the level of satisfaction with service for his company (3 options high, average, poor) with the four regions of his company (4 - southeast, northeast, northwest, and southwest). He randomly selected 1000 customers from each region and asked the customers about the level of service his company provided. What would be the degrees of freedom for the appropriate test? You must give the exact value. (Don't worry if Canvas adds extra zeros after the decimal.)

Name: ID: A 15. An experiment was designed to test whether or not students can tell the difference between tap water and bottled water. For cach student in a class of 20 students, three cups of water will be used. Two of the cups will be filled with either tap water or bottled water and the final cup filled with the other type. The students will drink all three cups of water and will be asked to identify which cup ofwater was different from the others. The type of water to be poured in two of thc three qups will be determined by random assignment. Which of the following cannot bc used to randomly assign each student to either two cups of tap water and one cup of bottled water or two cups of bottled water and one cup of tap water? Put each studcnt's name on cqually sized pieces of paper and then put the names in a hat. Mix the names thoroughly. The first ten students selected will be given two cups of tap water and the other students will be given two cups of botted water. a. b. Label…

Jose has scored  79 ,  84 , and  85  on his previous three tests. What score does he need on his next test so that his average (mean) is  80 ?

on a multiple choice test with 20 questions, each question has 4 possible answers, one of which is correct. for students who guess at all answers, find the mean for the number of correct answers.