14) 14) Numbered disks are placed in a box and one disk is selected at random. If there are 6 red disks numbered 1 through 6, and 4 yellow disks numbered 7 through 10, find the probability of selecting a yellow disk, given that the number selected is less than or equal to 3 or greater than or equal to 8. A) - B) C) 10 D) 5 15) A small computing center has found that the number of jobs submitted per day to its computers 15) has a distribution that is approximately bell shaped, with a mean of 75 jobs and a standard deviation of 8. Where do we expect most (approximately 95%) of the distribution to fall? A) between 67 and 83 jobs per day B) between 59 and 91 jobs per day C) between 51 and 99 jobs per day D) between 59 and 99 jobs per day 16) A simple random sample of size n = 1040 is obtained from a population whose size is N = 1,200,000 16) and whose population proportion with a specified characteristic is p = 0.32. Describe the sampling distribution of p. A) Approximately normal; up = 0.32, op = 0.014 B) Exactly normal; up = 0.32, op = 0.014 C) Exactly normal; up = 0.32, op = 0.1347 D) Approximately normal; up = 0.32, op = 0.1347 17) Find the critical value Fo for a left-tailed test using a = 0.05, degrees of freedom in the numerator = 17) 6, and degrees of freedom in the denominator = 16. A) 0.255 B) 2.74 C) 2.66 D) 0.365 18) A national caterer determined that 37% of the people who sampled their food said that it was 18) delicious. A random sample of 144 people is obtained from a population of 5000. The 144 people are asked to sample the caterer's food. If p is the sample proportion saying that the food is delicious, what is the standard deviation of the sampling distribution of p? A) 0.002 B) 0.48 C) 0.23 D) 0.04 19) The number of violent crimes committed in a day possesses a distribution with a mean of 2.3 19) crimes per day and a standard deviation of 2 crimes per day. A random sample of 100 days was observed, and the mean number of crimes for the sample was calculated. Describe the sampling distribution of the sample mean. A) shape unknown with mean = 2.3 and standard deviation = 2 B) approximately normal with mean = 2.3 and standard deviation = 2 C) approximately normal with mean = 2.3 and standard deviation = 0.2 D) shape unknown with mean = 2.3 and standard deviation = 0.2 What is 20) The top speeds (in mph) for a sample of five new automobile brands are listed below. Calculate the 20 ) standard deviation of the speeds. 150, 135, 195, 185, 115 A) 80 mph B) 156.00 mph C) 33.6 mph D) 26,208.00 mph 21) The average score of all golfers for a particular course has a mean of 75 and a standard deviation of 21) 3.5. Suppose 49 golfers played the course today. Find the probability that the average score of the 49 golfers exceeded 76. A) 0.4772 B) 0.0228 C) 0.3707 D) 0.1293 w