1)Here is a list of exam scores for the 14 students in Prof. Winkler's chemistry course: 60 61 61 65 72 75 75 78 81 81 85 89 91 98 What is the percentile of the person whose score was 65? Select one: O a. 15% O b. 21% O c. 29% o d. 71% 2)The average overtime of construction workers who work on weekends is 7.93 hours (over 2 days). The distribution of overtime can be approximated by a Normal distribution with a standard deviation of o.8 hours. Using Empirical Rule: about what percentage of the construction workers will work between 7.13 and 8.73 hours? Select one: O a. 45% O b. 68% O c. 95% o d. 99.7% 3)The average overtime of construction workers who work on weekends is 7.93 hours (over 2 days). The distribution of overtime can be approximated by a Normal distribution with a standard deviation of o.8 hours. Using Empirical Rule: about what percentage of the construction workers will work between 7.13 and 8.73 hours? Select one: O a. 45% O b, 68% c. 95% O d. 99.7% 4)Find the area under the standard normal distribution curve between z=0 and z=-0.34. Feel free to use the Normal Calculator or the z-Table Select one: O a. 0.1331 O b. 0.3669 O c. 0.5000 O d. 0.8669 5)The average number of earthquakes that occur in Los Angeles over one month is 36. (Most are undetectable.) Assume the standard deviation is 3.6. If a random sample of 35 months is selected, find the probability that the mean of the sample is between 35 and 37.5. Feel free to use the Normal Calculator or the z-Table Select one: O a. 0.05% O b.0.5% O c. 34.5% o d. 39% O e. 94.2% 6)Birth weights at a local hospital have a Normal distribution with a mean of 110 oz. and a standard deviation of 8 oz. Using Empirical Rule: what proportion of infants has birth weights over 118 oz.? 7)If a parent distribution is Normal, do you need to draw a sample of at least 30 to use the Normal distribution to find probabilities associated with selecting certain values? Explain why? 8)The average overseas trip cost is $2708 per visitor. If we assume a normal distribution with a standard deviation of $805. If we select a random sample of 30 overseas trips and find the mean of the sample, what is the probability that the mean is greater than $3000? Feel free to use the Normal Calculator or the z-Table