Consider the following grouped frequency table and answer the questions below. (6 marks) X f 45-49...
Consider the following grouped frequency table and answer the questions below. (6 marks)
| X | f |
| 45-49 | 2 |
| 40-44 | 5 |
| 35-39 | 15 |
| 30-34 | 3 |
| 25-29 | 1 |
| 20-24 | 17 |
| 15-19 | 4 |
| 10-14 | 3 |
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What is the interval width?
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Describe the distribution shape if the above frequency distribution was graphed. Then describe how the shape would change if the interval width was changed to 10. (You will need to graph the data with both interval widths in order to answer the question but do not submit the graphs. Just describe the shapes using appropriate statistical terminology.)
-
Imagine you had to interpret the data. Comment on the effect of increasing the interval width.
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Consider the following grouped frequency table and answer the
questions below. (6 marks)
X
f
45-49...
Create a Categorical Frequency Table and Grouped Frequency Distribution table in Excel using the above data...
Create a Categorical Frequency Table and Grouped Frequency
Distribution table in Excel using the above data
Example 2-1 Distribution of Blood Types Twenty-five army inductees were given a blood test to determine their blood type. The data set i:s ВВАВ B AO О O A AB B Construct a frequency distribution for the data Categorical Frequency Table (Qualitative or Discrete Data) 1. In an open workbook select cell A1 and type in all the blood types from Example 2-1 down...
Find the standard deviation of sample data summarized in the frequency distribution table below Daily Low...
Find the standard deviation of sample data summarized in the frequency distribution table below Daily Low Temp(*F) | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 Frequency s-LI。F (Round to one decimal place as needed.) Enter your answer in the answer box.
5. Grouped frequency distribution tables and real limits of intervals Aa Aa A researcher wants to...
5. Grouped frequency distribution tables and real limits of intervals Aa Aa A researcher wants to study the academic performance of small primary schools (defined as one classroom per grade) in her county. She decides to measure each school's academic performance by collecting data on the percentage of students performing at or above grade level The following table shows each school with the percentage of students performing at or above grade level Table 1 Academic Performance (Percentage of students performing...
Use the data in Table 1 to perform the following tasks: Construct a cumulative frequency distribution...
Use the data in Table 1 to perform the following tasks: Construct a cumulative frequency distribution (Ogive) using the speed class width (interval) of 5 mph Determine the pace, and Determine whether or not the mean speed exceeds the posted speed limit of 55 mph at 5% level of significance. TABLE 1 Speed Data Observed vehicular speed class (mph) Observed frequency 35-39 1 40-44 2 45-49 2 50-54 10 55-59 5 60-64 5 65-69 3 70-74 3 75-79 2 80-84...
The following is the number of minutes to commute from home to work for a group...
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(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)....
First, the table has approximately 10 (options, class intervals, or interval widths) The width of each...
First, the table has approximately 10 (options, class
intervals, or interval widths)
The width of each interval is a relatively (wide, simple, or
complex) number.
The bottom score in each class interval is a (reflection,
multiple, or factor) of the width.
In which interval would a score of 29.6 fall? (20-29, there is
no interval for this number, or 30-39)
In which interval would a score of 19.4 fall? (There is no
interval for this number, 10-19, or 20-29).
Please...
2.56 A researcher from a search engine company runs Internet searches and times how long each...
2.56 A researcher from a search engine company runs Internet searches and times how long each one takes. She found that 17 searches took 0.01 to 0.05 seconds; 57 took 0.06 to 0.10 seconds; 134 took 0.11 to 0.15 sec- onds; 146 took 0.16 to 0.20 seconds; 398 took 0.21 to 0.25 seconds; 82 took 0.26 to 0.30 seconds; and 56 took 0.31 to 0.35 seconds. Graph the frequency distribution and comment on its shape. A music teacher held an...
Seetion 2-1 Organizing Data47 88 88 110 88 s0 69 102 78 70 55 79 85...
Seetion 2-1 Organizing Data47 88 88 110 88 s0 69 102 78 70 55 79 85 80 100 60 90 77 55 75 55 54 60 7S 64 105 56 71 70 65 72 Souece New York Tisses Almanac 28.5 14.6 30.1 14 0.8 11.6 13 I1. GRE Scores at Top-Ranked Engineering Schools The average quantitative GRE scores for the top 30 graduate schools of engineering are listed. Construct a grouped frequency distribution and a cumulative frequency distribution with 5...
I need help answering the questions below. Please help :) Graph the frequency distribution as a...
I need help answering the questions below. Please help :) Graph the frequency distribution as a histogram graph. Carry all calculations and the answer to 4 decimal places unless otherwise noted. For example, the number "123.0000" has been carried and reported to 4 decimal places. (Yes, trailing zeros count.) The Countrytown School District has recorded the number of absences in a school year for a random sample of 24 students. The school board is concerned that half of their students...
Create a Categorical Frequency Table and Grouped Frequency
Distribution table in Excel using the above data
Example 2-1 Distribution of Blood Types Twenty-five army inductees were given a blood test to determine their blood type. The data set i:s ВВАВ B AO О O A AB B Construct a frequency distribution for the data Categorical Frequency Table (Qualitative or Discrete Data) 1. In an open workbook select cell A1 and type in all the blood types from Example 2-1 down...
Find the standard deviation of sample data summarized in the frequency distribution table below Daily Low Temp(*F) | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 Frequency s-LI。F (Round to one decimal place as needed.) Enter your answer in the answer box.
5. Grouped frequency distribution tables and real limits of intervals Aa Aa A researcher wants to study the academic performance of small primary schools (defined as one classroom per grade) in her county. She decides to measure each school's academic performance by collecting data on the percentage of students performing at or above grade level The following table shows each school with the percentage of students performing at or above grade level Table 1 Academic Performance (Percentage of students performing...
First, the table has approximately 10 (options, class
intervals, or interval widths)
The width of each interval is a relatively (wide, simple, or
complex) number.
The bottom score in each class interval is a (reflection,
multiple, or factor) of the width.
In which interval would a score of 29.6 fall? (20-29, there is
no interval for this number, or 30-39)
In which interval would a score of 19.4 fall? (There is no
interval for this number, 10-19, or 20-29).
Please...
2.56 A researcher from a search engine company runs Internet searches and times how long each one takes. She found that 17 searches took 0.01 to 0.05 seconds; 57 took 0.06 to 0.10 seconds; 134 took 0.11 to 0.15 sec- onds; 146 took 0.16 to 0.20 seconds; 398 took 0.21 to 0.25 seconds; 82 took 0.26 to 0.30 seconds; and 56 took 0.31 to 0.35 seconds. Graph the frequency distribution and comment on its shape. A music teacher held an...
Seetion 2-1 Organizing Data47 88 88 110 88 s0 69 102 78 70 55 79 85 80 100 60 90 77 55 75 55 54 60 7S 64 105 56 71 70 65 72 Souece New York Tisses Almanac 28.5 14.6 30.1 14 0.8 11.6 13 I1. GRE Scores at Top-Ranked Engineering Schools The average quantitative GRE scores for the top 30 graduate schools of engineering are listed. Construct a grouped frequency distribution and a cumulative frequency distribution with 5...
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