Answer)
First step is to arrange the given data in ascending order.
50, 55, 63, 71, 74, 83, 88, 93, 93, 95
Now we need to find the range, median and q1 and q3
Range = highest number - smallest number = 95-50 = 45
Median is the middlemost number
Median = (74+83)/2 = 78.5
Q1 = median of the numbers left to the median
50, 55, 63, 71, 74
Median = 63
Q3 = median of the numbers right to the median
Q3 = 93
Construct a box plot from the given data. Scores on a Statistics Test: 95, 50, 71,...
Construct a box plot from the given data. Use the approximation method. Scores on a Statistics Test: 86,81,62,64,85,61,54,53,83,88
Construct a box plot from the given data. Use the approximation method. Scores on a Statistics Test: 86,81,62,64,85,61,54,53,83,88
A statistics professor would like to build a model relating student scores on the first test to the scores on the second test. The test scores from a random sample of 21 students who have previously taken the course are given in the table. Test Scores Student First Test Grade Second Test Grade 1 70 71 2 93 88 3 79 82 4 83 80 5 65 77 6 80 80 7 71 74 8 84 85 9 44 67...
Given the following test scores on exam #1 for INEN 370 during
the summer 2017:
Due Name Date: Tuesday, January 29, 2019 ISEN 370-Engineering Statistics Assignment # 2 Homework I.(60) Given the following test scores on Exam # 1 for INEN 370 during the Summer 2017 93 77 67 72 528366 84 59 63 75 97 84 73 814261 51 91 87 34 54 7 47 79 706557 90 83 58 69 82 76 716038 81 74 69 68 76...
In Problems, construct a scatterplot of the given data. Is there a trend in the data? Are any of the data points outliers? Construct a divided difference table. Is smoothing with a low-order polynomial appropriate? If so, choose an appropriate polynomial and fit using the least-squares criterion of best fit. Analyze the goodness of fit by examining appropriate indicators and graphing the model, the data points, and the deviations In the following data, X is the Fahrenheit temperature and Y...
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...
Construct a confidence interval for pd, the mean of the differences d for the population of paired data. Assume that the population of paired differences is normally distributed. 5) A test of abstract reasoning is given to a random sample of students before and after they 5) completed a formal logic course. The results are given below. Construct a 95% confidence interval for the mean difference between the before and after scores. Before 74 83 75 88 84 63 93...
Do men score lower on average compared to women on their statistics test? test scores of nineteen randomly selected male statistics students and twenty-eight randomly selected female statistics students are shown below. Assume Equal Variances. Male: 86, 83, 74, 76, 80, 63, 94, 91, 65, 95, 57, 91, 84, 85, 79, 76, 87, 94, 64 Excel Female: 88, 99, 82, 90, 65, 99, 76, 93, 93, 69, 70, 89, 96, 83, 74, 77, 90, 91, 100, 78, 76, 100, 78, 84, 100,...
A statistics professor would like to build a model relating student scores on the first test to the scores on the second test. The test scores from a random sample of 21 students who have previously taken the course are given in the table. Test Scores Student First Test Grade Second Test Grade 1 88 76 2 72 69 3 80 74 4 44 64 5 71 77 6 50 66 7 98 86 8 78 78 9 73 78...