The Quick Change Oil Company has a number of outlets. The numbers of oil changes at...
The Quick Change Oil Company has a number of outlets. The numbers of oil changes at the Oak Street outlet in the past 20 days are as follows:
| 65 | 98 | 55 | 62 | 79 | 59 | 51 | 90 | 72 | 56 |
| 70 | 62 | 66 | 80 | 94 | 79 | 63 | 73 | 71 | 85 |
The data are to be organized into a frequency distribution.
a. How many classes would you recommend?
b. What class interval would you suggest? (Round the final answer to the nearest whole number.)
c. What lower limit would you recommend for the first class?
d. Organize the information into a frequency distribution and determine the relative frequency distribution. (Round the final answers to 2 decimal places.)
| Units | Frequency | Relative frequency |
| 50 to under 60 | ||
| 60 to under 70 | ||
| 70 to under 80 | ||
| 80 to under 90 | ||
| 90 to under 100 | ||
| Total | ||
e. Comment on the shape of the distribution. (Enter the intervals in ascending order.)
The greatest concentration is in classes(__) up to (__)and (__) up to (__) .
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The Quick Change Oil Company has a number of outlets. The
numbers of oil changes at...
The Quick Change Oil Company has a number of outlets. The numbers of oil changes at...
The Quick Change Oil Company has a number of outlets. The numbers of oil changes at the Oak Street outlet in the past 20 days are as follows: 69 32 49 51 58 53 73 35 88 85 80 60 87 48 55 46 82 81 64 71 The data are to be organized into a frequency distribution. a. How many classes would you recommend? b. What class interval would you suggest? (Round the final answer to the nearest whole...
The Wachesaw Manufacturing Co. produced the following number of units in the last 16 days: 31...
The Wachesaw Manufacturing Co. produced the following number of units in the last 16 days: 31 31 31 32 31 29 29 32 30 32 30 32 35 34 30 30 The information is to organized into a frequency distribution. a. How many classes would you recommend? b. What class interval would you suggest? (Round the final answer to 1 decimal place.) c. What lower limit would you recommend for the first class? d. Organize the information into a frequency...
I need answer on number 7 please 5. Students in a statistics class took their first...
I need answer on number 7 please 5. Students in a statistics class took their first test. The following table lists the scores they earned. 67 67 76 47 85 70 87 76 67 72 84 98 84 64 65 82 81 81 88 74 87 83 Complete the following frequency distribution table using 6 classes: 40-49, 50-59, 60-69, 70-79, 80-89, and 90-99. Scores Tally Frequency Relative Frequency Cumulative Relative Frequency 40 - 49 50 - 59 60 - 69...
7. Use the following collection of 30 test scores: 100, 65, 67, 61, 62, 70, 75,...
7. Use the following collection of 30 test scores: 100, 65, 67, 61, 62, 70, 75, 73, 88, 77, 83, 79, 95, 79, 80, 102, 86, 87, 87, 91, 87, 89, 92, 90, 99, 87, 72, 93, 79,52 a. Construct a frequency distribution table using 6 classes: include classes, frequencies, class marks, class boundaries, relative frequencies and relative percentages. b. Find the mean to the nearest tenth and sample standard deviation to the nearest tenth. c. Use the results from...
7. Use the following collection of 30 test scores: 100, 65, 67, 61, 62, 70, 75,...
7. Use the following collection of 30 test scores: 100, 65, 67, 61, 62, 70, 75, 73, 88, 77, 83, 79, 95, 79, 80, 102, 86, 87, 87, 91, 87, 89, 92, 90, 99, 87, 72, 93, 79,52 a. Construct a frequency distribution table using 6 classes: include classes, frequencies, class marks, class boundaries, relative frequencies and relative percentages. b. Find the mean to the nearest tenth and sample standard deviation to the nearest tenth. c. Use the results from...
show work 7. Use the following collection of 30 test scores: 100, 65, 67, 61, 62,...
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7. Use the following collection of 30 test scores: 100, 65, 67, 61, 62, 70, 75, 73, 88, 77, 83, 79, 95, 79, 80, 102, 86, 87, 87, 91, 87, 89, 92, 90, 99, 87, 72, 93, 79, 52 a. Construct a frequency distribution table using 6 classes: include classes, frequencies, class marks, class boundaries, relative frequencies and relative percentages. b. Find the mean to the nearest tenth and sample standard deviation to the nearest tenth. 6. Use...
Please answer all questions! thanks :) VI/ Test scores from a math midterm are as follows:...
Please
answer all questions! thanks :)
VI/ Test scores from a math midterm are as follows: 79, 90, 85, 89, 70, 59, 75, 64, 83, 78, 75, 77, 78, 77, 67, 85, 74, 52, 87, 72, 69, 76, 61, 77, 93, 86, 79, 90, 74, 67, 51, 75, 77, 82, 78, 60, 86, 72, 91, 95, 82 Complete the frequency distribution table to include all data a. Class Tallies Class Midpoint Relative Cumulative Frequency relative freq boundaries Frequency 51 57...
show work. 7. Use the following collection of 30 test scores: 100, 65, 67, 61, 62,...
show
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7. Use the following collection of 30 test scores: 100, 65, 67, 61, 62, 70, 75, 73, 88, 77, 83, 79, 95, 79, 80, 102, 86, 87, 87, 91, 87, 89, 92, 90, 99, 87, 72, 93, 79, 52 a. Construct a frequency distribution table using 6 classes: include classes, frequencies, class marks, class boundaries, relative frequencies and relative percentages. b. Find the mean to the nearest tenth and sample standard deviation to the nearest tenth. c. Use...
7. Use the following collection of 30 test scores: 100, 65, 67, 61, 62, 70, 75,...
7. Use the following collection of 30 test scores: 100, 65, 67, 61, 62, 70, 75, 73, 88, 77, 83, 79, 95, 79, 80, 102, 86, 87, 87, 91, 87, 89, 92, 90, 99, 87, 72, 93, 79,52 a. Construct a frequency distribution table using 6 classes: include classes, frequencies, class marks, class boundaries, relative frequencies and relative percentages. b. Find the mean to the nearest tenth and sample standard deviation to the nearest tenth. c. Use the results from...
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7. Use the following collection of 30 test scores: 100, 65, 67, 61, 62, 70, 75, 73, 88, 77, 83, 79, 95, 79, 80, 102, 86, 87, 87, 91, 87, 89, 92, 90, 99, 87, 72, 93, 79,52 a. Construct a frequency distribution table using 6 classes: include classes, frequencies, class marks, class boundaries, relative frequencies and relative percentages. b. Find the mean to the nearest tenth and sample standard deviation to the nearest tenth. c. Use the results from...
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7. Use the following collection of 30 test scores: 100, 65, 67, 61, 62, 70, 75, 73, 88, 77, 83, 79, 95, 79, 80, 102, 86, 87, 87, 91, 87, 89, 92, 90, 99, 87, 72, 93, 79, 52 a. Construct a frequency distribution table using 6 classes: include classes, frequencies, class marks, class boundaries, relative frequencies and relative percentages. b. Find the mean to the nearest tenth and sample standard deviation to the nearest tenth. 6. Use...
Please
answer all questions! thanks :)
VI/ Test scores from a math midterm are as follows: 79, 90, 85, 89, 70, 59, 75, 64, 83, 78, 75, 77, 78, 77, 67, 85, 74, 52, 87, 72, 69, 76, 61, 77, 93, 86, 79, 90, 74, 67, 51, 75, 77, 82, 78, 60, 86, 72, 91, 95, 82 Complete the frequency distribution table to include all data a. Class Tallies Class Midpoint Relative Cumulative Frequency relative freq boundaries Frequency 51 57...
show
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7. Use the following collection of 30 test scores: 100, 65, 67, 61, 62, 70, 75, 73, 88, 77, 83, 79, 95, 79, 80, 102, 86, 87, 87, 91, 87, 89, 92, 90, 99, 87, 72, 93, 79, 52 a. Construct a frequency distribution table using 6 classes: include classes, frequencies, class marks, class boundaries, relative frequencies and relative percentages. b. Find the mean to the nearest tenth and sample standard deviation to the nearest tenth. c. Use...
7. Use the following collection of 30 test scores: 100, 65, 67, 61, 62, 70, 75, 73, 88, 77, 83, 79, 95, 79, 80, 102, 86, 87, 87, 91, 87, 89, 92, 90, 99, 87, 72, 93, 79,52 a. Construct a frequency distribution table using 6 classes: include classes, frequencies, class marks, class boundaries, relative frequencies and relative percentages. b. Find the mean to the nearest tenth and sample standard deviation to the nearest tenth. c. Use the results from...
The following is the number of minutes to commute from home to work for a group of 25 automobile executives 29 31 25 25 47 20 37 32 41 19 2532 32 25 4335 10 42 22 22 2936 38 32 29 a. How many classes would you recommend? Number of classes What class interval would you suggest? (Round up your answer to the next whole number.) Class interval c. Organize the data and plot a frequency distribution on a...
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