A professor had students keep track of their social interactions for a week. The number of...
A professor had students keep track of their social interactions for a week. The number of social interactions over the week is shown in the following grouped frequency distribution. What is the class width?
| Number of Social Interactions | Frequencies |
|---|---|
| 5-10 | 6 |
| 11-16 | 18 |
| 17-22 | 10 |
| 23-28 | 13 |
| 29-34 | 16 |
| 35-40 | 9 |
| 41-46 | 5 |
| 47-52 | 6 |
| 53-58 | 0 |
| 59-64 | 4 |
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A professor had students keep track of their social interactions for a week. The number of...
1- Suppose there are only 38 students in advance statistics class and final scores of these...
1- Suppose there are only 38 students in advance statistics class and final scores of these 38 students are: 10 34 45 55 63 75 class lit 23 34 49 56 64 82 24 36 50 58 65 82 26 41 51 59 71 95- 32 41 52 60 73 33 45 54 62 74 s lin 46 54 63 74 a- Construct grouped frequency distribution table for this dataset with relative and cumulative frequencies (with closed intervals). b- Find...
NUMBER OF PEOPLE 10.2 10.0 10.1 8.5 10.2 8.2 8 Source: United States Census. 11. In...
NUMBER OF PEOPLE 10.2 10.0 10.1 8.5 10.2 8.2 8 Source: United States Census. 11. In the Sanitary District of Chicago, operating engineers are hired on of a competitive civil-service examination. In 1966, there were 223 appl for 15 jobs. The exam was held on March 12; the test scores are s arranged in increasing order. The height of each bar in the histogram next page) shows the number of people with the correspondin examiners were charged with rigging the...
(a). Construct a frequency distribution with the suitable class interval size of marks obtained by 50...
(a). Construct a frequency distribution with the suitable class interval size of marks obtained by 50 students of a class, which are given below: 23, 50, 38, 42, 63, 75, 12, 33, 26, 39, 35, 47, 43, 52, 56, 59, 64, 77, 15, 21, 51, 54, 72, 68, 36, 65, 52, 60, 27, 34, 47, 48, 55, 58, 59, 62, 51, 48, 50, 41, 57, 65, 54, 43, 56, 44, 30, 46, 67, 53 (b). Find the Minimum Value (c)....
1. The number of hours per week that 200 college students spend on the Internet is...
1. The number of hours per week that 200 college students spend on the Internet is grouped into classes (0 − 3),(4 − 7),(8 − 11),(12 − 15),(16 − 19),(20 − 23),(24 − 27) with observed frequencies of 12, 25, 36, 45, 34, 31, and 17. The grouped mean and standard deviation are found from the data. The null hypothesis is that the data is normally distributed. Using the mean and standard deviation, the expected frequencies are found to be...
The College Registrar’s Office recorded the number of students receiving a grade of Incomplete. Results for...
The College Registrar’s Office recorded the number of students receiving a grade of Incomplete. Results for the past 26 quarters are: 19 58 63 77 53 39 93 35 63 32 46 57 67 62 67 71 59 48 56 75 48 28 47 42 81 62 (a) Make a frequency table with five classes, showing class boundaries, class midpoints, frequencies, and relative frequencies. (b) Make a relative frequency histogram with five classes.
(31) The College Registrar's Office recorded the number of students receiving a grade of Incomplete. Results...
(31) The College Registrar's Office recorded the number of students receiving a grade of Incomplete. Results for the past 26 quarters are: 19 58 63 77 53 39 93 35 63 32 46 57 67 62 67 71 59 48 56 75 48 28 47 42 81 62 (a) Make a frequency table with five classes, showing class boundaries, class midpoints, frequencies, and relative frequencies. (b) Make a relative frequency histogram with five classes.
Problem 4: Variables that may affect Grades The data set contains a random sample of STAT 250 Final Exam Scores out of 80 points. For each individual sampled, the time (in hours per week) that the stu...
Problem 4: Variables that may affect Grades The data set contains a random sample of STAT 250 Final Exam Scores out of 80 points. For each individual sampled, the time (in hours per week) that the student spent participating in a GMU club or sport and working for pay outside of GMU was recorded. Values of 0 indicate the students either does not participate in a club or sport or does not work a job for pay. The goal of...
Lenny Florita, an unmarried employee, works 44 hours in the week ended January 12. His pay...
Lenny Florita, an unmarried employee, works 44 hours in the week ended January 12. His pay rate is $14 per hour, and his wages have deductions for FICA Social Security, FICA Medicare, and federal income taxes. He claims four withholding allowances. Compute his regular pay, overtime pay (Lenny earns $21.00 per hour for each hour over 40 per week), and gross pay. Then compute his FICA tax deduction (6.2% for the Social Security portion and 1.45% for the Medicare portion),...
The index of biotic integrity (IBI) is a measure of the water quality in streams. II...
The index of biotic integrity (IBI) is a measure of the water quality in streams. II and land-use measures for a collection of streams in the Ozark Highland ecoregion of Arkansas were collected as part of a study The data table below gives the data for 11, the percent of the watershed that was forest, and the area of the watershed in square kilometers for streams in the original sample with watershed are less than or equal to 70km? Area...
1. Forecast demand for Year 4. a. Explain what technique you utilized to forecast your demand....
1. Forecast demand for Year 4.
a. Explain what technique you utilized to forecast your
demand.
b. Explain why you chose this technique over others.
Year 3 Year 1 Year 2 Actual Actual Actual Forecast Forecast Forecast Demand Demand Demand Week 1 52 57 63 55 66 77 Week 2 49 58 68 69 75 65 Week 3 47 50 58 65 80 74 Week 4 60 53 58 55 78 67 57 Week 5 49 57 64 76 77...
1- Suppose there are only 38 students in advance statistics class and final scores of these 38 students are: 10 34 45 55 63 75 class lit 23 34 49 56 64 82 24 36 50 58 65 82 26 41 51 59 71 95- 32 41 52 60 73 33 45 54 62 74 s lin 46 54 63 74 a- Construct grouped frequency distribution table for this dataset with relative and cumulative frequencies (with closed intervals). b- Find...
NUMBER OF PEOPLE 10.2 10.0 10.1 8.5 10.2 8.2 8 Source: United States Census. 11. In the Sanitary District of Chicago, operating engineers are hired on of a competitive civil-service examination. In 1966, there were 223 appl for 15 jobs. The exam was held on March 12; the test scores are s arranged in increasing order. The height of each bar in the histogram next page) shows the number of people with the correspondin examiners were charged with rigging the...
(31) The College Registrar's Office recorded the number of students receiving a grade of Incomplete. Results for the past 26 quarters are: 19 58 63 77 53 39 93 35 63 32 46 57 67 62 67 71 59 48 56 75 48 28 47 42 81 62 (a) Make a frequency table with five classes, showing class boundaries, class midpoints, frequencies, and relative frequencies. (b) Make a relative frequency histogram with five classes.
Lenny Florita, an unmarried employee, works 44 hours in the week ended January 12. His pay rate is $14 per hour, and his wages have deductions for FICA Social Security, FICA Medicare, and federal income taxes. He claims four withholding allowances. Compute his regular pay, overtime pay (Lenny earns $21.00 per hour for each hour over 40 per week), and gross pay. Then compute his FICA tax deduction (6.2% for the Social Security portion and 1.45% for the Medicare portion),...
The index of biotic integrity (IBI) is a measure of the water quality in streams. II and land-use measures for a collection of streams in the Ozark Highland ecoregion of Arkansas were collected as part of a study The data table below gives the data for 11, the percent of the watershed that was forest, and the area of the watershed in square kilometers for streams in the original sample with watershed are less than or equal to 70km? Area...
1. Forecast demand for Year 4.
a. Explain what technique you utilized to forecast your
demand.
b. Explain why you chose this technique over others.
Year 3 Year 1 Year 2 Actual Actual Actual Forecast Forecast Forecast Demand Demand Demand Week 1 52 57 63 55 66 77 Week 2 49 58 68 69 75 65 Week 3 47 50 58 65 80 74 Week 4 60 53 58 55 78 67 57 Week 5 49 57 64 76 77...
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