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MY NOTES 19. [-/9 Points] DETAILS The college Physical Education Department offered an Advanced First Aid course last summer. The scores on the comprehensive final exam were normally distributed, and the z scores for some of the students are shown below. Robert, 0.95 Juan, 1.80 Susan, -2.03 Joel, 0.00 Jan, -0.65 Linda, 1.59 STEP 1: Which of these students scored above the mean? (Select all that apply.) Joel Linda Juan Susan O Jan O Robert STEP 2: Which of these students scored on the mean? (Select all that apply.) O Jan Linda Joel O Robert Juan Susan STEP 3: Which of these students scored below the mean? (Select all that apply.) O Susan Jan O Robert Linda Juan Joel STEP 4: If the mean score was a = 159 with standard deviation & = 25, what was the final exam score for each student? (Round your answers to the nearest whole number.) Robert Juan Susan Joel Jan Linda Submit Answer20. [-/2 Points] DETAILS MY NOTES 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 , = year 1263 with standard deviation , = 32 years. At a second, removed site, the tree-ring dates gave a mean of #2 = year 1133 with standard deviation o, = 40 years. Assume that both sites had dates that were approximately normally distributed. In the first area, an object was found and dated as x, = year 1225. In the second area, another object was found and dated as x2 = year 1214. Convert both x, and x2 to z values. (Use 2 decimal places.) 21 =16. [0/1 Points] DETAILS PREVIOUS ANSWERS MY NOTES The odds of an event not occuring are given as 5 to 4. What is the probability of success? (Enter exact fraction or a decimal answer to a minimum of 4 places.) 0.5558 17. [1/1 Points] DETAILS PREVIOUS ANSWERS MY NOTES Find the mean of a binomial distribution when q = 14% and n = 211. 4 = 181.46 18. [0/1 Points] DETAILS PREVIOUS ANSWERS MY NOTES Assume that IQ scores are normally distributed, with a standard deviation of 15 points and a mean of 100 points. If 75 people are chosen at random, what is the probability that the sample mean of IQ scores will not differ from the population mean by more than 2 points? (use 3 decimal places 0.5558 1X