Answer Happy

FI w m. . . 15. The mean 10 of the population of eleventh graders in a city is known to be 100. A random sample of 50 eleventh graders is tested. The first student has an 10 of 150 What do you expect the mean IQ to be for the whole sample? a) 100 b) 150 c) 101 d) Not given 16. In an independent survey of high school and college instructos 90% agreed that students who have a computer receive better grades. We can conclude that... a) Owning a computer helps students get better grades b) Buying a computer will improve grades c) Both A and B d) Neither A nor B 17. Consider the following categorical syllogistic reasoning. All psychologists are scientists. Some scientists are mortal. Therefore, some psychologists we mortal a) This argument is valid b) This argument is invalid c) This argument is true d) This argument is not true. c) Alternative Band 18. Three companies A, B, and submit seuled bids for a job. Each company can be considered to have a 1/3 change of getting the low bid. After the bids were in, it was keamed that Company A was underbid by Company B. Now what is Company's chance of winning the contract a) 1/4 b) 1/2 c) 1/3 d) 2/3 e) None of the above