Show your calculations and answer all the questions below. Your IPA must be completed individually by yourself. Hand calculation (using a calculator is OK) is expected for this assignment; do not use Excel, SPSS, or other software programs to do the calculation. Keep two decimal places in your calculation as needed.
1. Ten SJSU students were surveyed about their opinions on two teaching evaluations: ratemyprofessor.com and SOTES (Student Opinion of Teaching Effectiveness). They indicated the level of effectiveness on a 10-point scale, with "1" being "not very effective" and "10" being "very effective". The rating scores are shown below by teaching evaluation. Observation SOTES ratemyprofessor.com DOYOUPUNK 10 10 A) Which teaching evaluation is more effective? Show all the calculations (1 pt). B) On which teaching evaluation do students have more different opinions? Use all the 10 observations and show all the calculations (3 pts).2. Ms. Tran is responsible for recruiting international students for a summer internship at her company. Her recruiting job is almost done, but she needs to pick one last student from three candidates. They are all very competitive and it seems that the only way to rank them is their college GPAs. Luis is from Spain and his GPA is 8.36 out of 10, Daniel is from Switzerland and his score is 5.21 out of 6, and Mia is from Australia and her score is 6.19 out of 7. Luckily, Ms. Tran also has the mean and standard deviation of college GPAs from each country (see table). If you were Ms. Tran, which candidate will you choose for the summer internship? Show all the calculations (2 pts). Country Mean SD Candidate's score Spain 5.43 2.29 8.36 (Luis) Switzerland 3.41 1.56 5.21 (Daniel) Australia 3.75 1.96 6.19 (Mia)3. Marketing researchers studv the expenditures on dinning out. Thev want to have a 95 percent condent level {2} and accept a magnitude of error {E} of less than $2.35. The estimate of the standard deviation is 53:14 based on their pilot studv. What is the calculated sample size if thev want to run a survev? Perform this calculation {2 pts}. 4. A fast-food restaurant wishes to estimate average sales volume for a new menu item. The restaurant has analvzed the sales of the item at a similar outlet and observed the following results: f = 515.5 {mean dailv sales} 3 = 33.9 {standard deviation of sample} n = 2E- {sample size] The restaurant manager wants to know into what range the mean daily sales should fall 95 percent of the time. Perform this calculation
