Given the following test score distribution:
y f
| 100 | 4 |
| 95 | 2 |
| 88 | 2 |
| 82 | 1 |
| 77 | 3 |
| 77 | 1 |
What is the percentile rank corresponding to a hypothetical value of Y=89? Explain/show your rationale for full credit.
Given the following test score distribution: y f 100 4 95 2 88 2 82 1...
Use the Grouped Distribution method for the following exercise (see Self-Test 2-4 for detailed instructions), rounding each answer to the nearest whole number. Using the frequency distribution below (scores on a statistics exam taken by 80 students), determine:ion 1 of the preliminary test (scores on a statistics exam taken by 80 students), determine: 68 84 75 82 68 90 62 88 76 93 73 79 88 73 60 93 71 59 85 75 61 65 75 87 74 62 95...
Use the Grouped Distribution method for the following exercise (see Self-Test 2-4 for detailed instructions), rounding each answer to the nearest whole number. Using the frequency distribution below (scores on a statistics exam taken by 80 students), determine:ion 1 of the preliminary test (scores on a statistics exam taken by 80 students), determine: 68 84 75 82 68 90 62 88 76 93 73 79 88 73 60 93 71 59 85 75 61 65 75 87 74 62 95...
Given this sample of 20 golf scores: 82 68 62 125 81 79 88 95 97 108 66 135 126 118 82 79 87 65 120 136 1. Using the golf score data, make a Frequency Distribution with 5 classes. (label: c, cb, mp, f, cf, rf, crf) 2. Then, construct a Histogram for the data.
The average final exam score for the statistics course is 82%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is higher. The final exam scores for the 13 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 89, 96, 70, 93, 95, 89, 100, 93, 71, 80, 91, 100, 75 What can...
1. find p(e/F) given that p(F) = .88 and p(F) = .82 e and f are independent events. 2. fine p(E/F) give. that p(E) = 0.0 and p(F) = .6 e and f are mutually exclusive 1. find P(E/F) given that P(E)= .88 P(F)= .82
5. Mark’s class just took the admission test for business school and averaged 87.05. Chapter 10 Data Set 2 contains the population of scores for the 10 other classes in Mark’s university. How did Mark’s class do? Class 1 Class 2 Class 3 Class 4 Class 5 Class 6 Class 7 Class 8 Class 9 Class 10 78 81 96 85 88 78 90 79 96 86 77 78 97 90 88 82 86 93 87 89 78 93 88...
The table shows a student's record of performance on five tests. On which test did the student rank the highest in relation to the other students in class? (assume that the test scores on each test are normally distributes.) Explain and show your answer. Test Number Student's Score Class Mean Class Standard Deviation 1 85 76 3 2 87 89 7 3 94 88 4 4 88 80 6 5 82 72 5
1. The scores on a given test for ten students were as follows: 20, 15, 18, 38, 42, 51, 23, 26, 20, 11 Find the mean. Find the median. Find the mode. Find the midrange. Find Q1 Find P60 Find the percentile rank for the score 38. Find the range. 2. Find the sample variance of the test scores. (Show work by hand to receive credit!) 3. Construct a box plot using the test score data. 4. Construct a...
A math test was given to five randomly selected schools. The result of the exams is given in the following table. School 1: 72 83 92 97 82 75 68 93 School 2: 75 81 95 92 88 70 70 90 97 84 76 School 3: 82 73 99 90 66 77 School 4: 71 85 91 95 89 73 70 96 92 83 71 58 63 89 School 5: 82 85 79 90 86 77 71 86 90 73...
A recent statistics exam yielded the following 25 scores. 68 84 38 84 80 53 90 54 82 61 63 88 98 68 71 100 86 95 88 97 95 100 32 66 63 What is the percentile rank of the student who scored a 71? Show your work. (1 pt.) Assume that the statistics exam was a standardized test given to students across the nation. What would the percentile rank of the above student (the student who scored a...