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Im having a difficult time completing these questions. I need help on these selected questions 10-14. Thanks!

Tree-ring dates were used extensively in archaeological studies at Burnt Mesa Pueblo. At one site on the mesa, tree-ring dates (for many samples) gave a mean date of u1 = year 1266 with standard deviation o1 = 39 years. At a second, removed site, the tree-ring dates gave a mean of #2 = year 1116 with standard deviation o2 = 36 years. Assume that both sites had dates that were approximately normally distributed. In the first area, an object was found and dated as x1 = year 1224. In the second area, another object was found and dated as x2 = year 1236. The Standard Normal Distribution u = 0, 0 =1) -1 68% of area 95% of area 99.7% of area (a) Convert both x1 and x2 to z values, and locate both of these values under the standard normal curve of the figure above. (Round your answers to two decimal places.) Z1 = 22 = (b) Which of these two items is the more unusual as an archaeological find in its location? o x1; the further a z value is from zero, the more u x2; the further a z value is from zero, the more unusual it is. o x1; the closer a z value is to zero, the more unusual it is. x2; the closer a z value is to zero, the more unusual it is. Need Help? Read it Watch It Talk to a Tutor Submit Answer Practice Another Version 11. + 0/1 points Previous Answers BBBasicStat8 7.2.013. My Notes + Ask Your Teacher Sketch the area under the standard normal curve over the indicated interval and find the specified area. (Round your answer to four decimal places.) The area to the right of z = 0 is Need Help? Read it Talk to a Tutor Viewing Saved Work Revert to Last Response 12. + -/1 points BBBasicStat8 7.2.014. My Notes Ask Your Teacher Sketch the area under the standard normal curve over the indicated interval and find the specified area. (Round your answer to four decimal places.) The area to the left of z = 0 is Need Help? Read it Watch it Talk to a Tutor 13. + -/1 points BBBasicStat8 7.2.015.MI. My Notes + Ask Your Teacher Sketch the area under the standard normal curve over the indicated interval and find the specified area. (Round your answer to four decimal places.) The area to the left of z = -1.41 is Need Help? Read it Watch it Master It Talk to a Tutor 14. +-/1 points BBBasicStat8 7.2.016. My Notes +Ask Your Teacher Sketch the area under the standard normal curve over the indicated interval and find the specified area. (Round your answer to four decimal places.) The area to the left of z = -0.45 is Need Help? Read it Watch it Talk to a Tutor