Current Attempt in Progress The following data give the speeds of 13 cars, measured by radar,...
016 7. The following data give the speeds (mi/hr), as measured by radar of 16 cars traveling on the interstate 1-15. Assume the population is normal population. 75 72 80 68 76 74 71 78 82 62 65 70 64 79 74 66 a) What is point estimate of the mean and standard deviation of all cars traveling on this highway. b) Compute the 95% confidence interval for the mean speed of all cars traveling on this highway. c) Compute...
Please show all your work, write equations clearly, plug in values properly, and comment on all steps. The following data give the speeds of 13 cars (in mph) measured by radar, travelling on 1-84. 73 75 69 68 78 69 74 76 72 79 68 77 71 Calculate the value of the 35th percentile. Enter the exact answer. mph. exact number, no tolerance
Please show all your work, write equations clearly, plug in values properly, and comment on all steps. The following data give the speeds of 13 cars (in mph) measured by radar, travelling on 1-84. 73 75 69 68 78 69 74 76 72 79 68 77 71 Compute the percentile rank of 75 Round your answer to two decimal places. To the absolute tolerance is +/-0.01
Problem #1: Consider the below matrix A, which you can copy and paste directly into Matlab. The matrix contains 3 columns. The first column consists of Test #1 marks, the second column is Test # 2 marks, and the third column is final exam marks for a large linear algebra course. Each row represents a particular student.A = [36 45 75 81 59 73 77 73 73 65 72 78 65 55 83 73 57 78 84 31 60 83...
Use the accompanying data set on the pulse rates (in beats per minute) of males to complete parts (a) and (b) below. LOADING... Click the icon to view the pulse rates of males. a. Find the mean and standard deviation, and verify that the pulse rates have a distribution that is roughly normal. The mean of the pulse rates is 71.871.8 beats per minute. (Round to one decimal place as needed.) The standard deviation of the pulse rates is 12.212.2...
PRINTER VERSION 8th ed Chapter 03, Section 3.5, Problem 092b The following data give the numbers of computer keyboards assembled at the Twentieth Century Electronics Company for a sample of 25 days. 66 67 68 71 72 72 70 71 7777 78 78 81 79 75 76 76 77 69 69 73 73 73 74 75 Determine the (approximate) value of the 53rd percentile. Round your answer to the nearest integer. 1878 81 79 75 76 76 77 606 The...
The following experimental data represent a distribution of driving speeds (in miles per hour) at which individuals were travelling on a highway: 64 68 79 80 64 70 76 67 72 65 73 65 67 65 70 62 67 68 65 64 7) Calculate the 25th, 50th, and 75th percentiles for the data. Based on this, calculate the "interquartile range" (i.e., IQR) for these results 8) Construct a boxplot (box-and-whisker plot) for the data using the technique I described in...
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...
The following data give the speeds (in miles per hour) of 12 cars traveling on a highway. 67 71 57 54 69 74 77 62 61 59 58 63 a. Calculate the values of three quartiles. b. Find the (approximate) value of the 40th percentile. c. Find the percentile rank of 62