Reference no: EM13710361
Q1 : Understandthe basic statistical concepts that are used to analyze business data.
Q2: Use and interpretdifferent descriptive statistical measures
Q3: Apply the laws of probability tosolve basic problems in business.
1. Use Microsoft office EXCEL to solve the questions of this part.
2. Print and attach your solutions and graphs.
The business statistics exam results for a random sample of 40 students in a local university are listed here.
|
30
|
17
|
18
|
11
|
9
|
48
|
19
|
9
|
|
9
|
25
|
38
|
1
|
22
|
14
|
19
|
59
|
|
10
|
29
|
9
|
17
|
24
|
52
|
9
|
35
|
|
32
|
43
|
53
|
34
|
12
|
30
|
9
|
31
|
|
34
|
38
|
8
|
39
|
8
|
18
|
34
|
29
|
A.Construct frequency, relative frequency, and percent frequency distributions. Use classes 0 - 9, 10 - 19,.....and so on.
B.Answer the following questions.
B1.Find the percentage of students who scored less than or equal to 49.
B2.Find the percentage of students who scored more than or equal 20.
B3.Find thepercentage of students who scored between 20 and 49.
B4.Find the number of students who scored between 20 and 49.
C.Draw the following bar graphson the same sheet of paper (3graphs) -
C1:Classes size with frequency.
C2:Classes size with relative frequency.
C3:Classes size with percent frequency.
D.Compute the following: Show All Your Workin a separate sheet
1. The sample mean.
2. The median.
3. The mode.
4. The range.
5. The 35th percentile.
6. The 80th percentile.
7. The sample variance and the sample standard deviation.
8. The Coefficient of variation.
Question two:
The ministry of labor collected data on the occupations of workers. The following table shows the number of Maleand Femaleworkers in the occupation categories Labor and Managerial:
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Occupation
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Male
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Female
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Labor
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10576
|
3482
|
|
Managerial
|
19079
|
19021
|
a) Develop a joint probability table:
b) Find the probability of selecting a male.
c) Find the probability of selecting a female manager.
d) Compute the probability of selecting a male worker given that he is labor.
e) Compute the probability of selecting a male worker or manager.
f) Are the events mentioned in question mutually exclusive? Give a reason for your answer.
g) Are the events mentioned in question d)independent events? Give a reason for your answer.
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Dry saturated steam and super heated steam
: Write a description of the generation of the following with reference to diagrams. Dry saturated steam. Super heated steam.
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Find the minimum value of the relative humidity in the room
: A person with glasses enters a heated room at 22oC, after spending some time in the cold (the glasses are at 1oC). The glasses start to fog. Find the minimum value of the relative humidity in the room.
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Example of the use of steam tables and mollies charts
: Final page of the website requires an example of the use of steam tables and mollies charts, Use the following information to show how the answer can be calculated using either of the two methods. A. Find the enthalpy of steam at 0.4 Mpa and 0.7 dryn..
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Measured data calculate drag force per unit length cylinder
: In an experiment to determine drag, a circular cylinder of diameter d was immersed in a steady two dimensional incompressible flow. Measurements of velocity and pressure were made at the boundaries of the control surface shown. The pressure was found..
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Find the probability of selecting a female manager
: Find the probability of selecting a male and find the probability of selecting a female manager and compute the probability of selecting a male worker given that he is labor.
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Determine the work and heat transfer for each process
: A piston-cylinder assembly contains 2 lb of water initially at 100 psi and 400 F. The water undergoes two processes in a series, first a constant pressure process and then a constant-volume process. At the end of teh constant-volume process the tempe..
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Provide a preliminary thesis statement
: Identify the audience, and provide a preliminary thesis statement - explain the reason for selecting topic two, identify the audience, and provide a preliminary thesis statement.
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Critically evaluate measures used by governments
: Critically evaluate measures used by governments and central banks to manage the economies of their countries.
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Combined cycle power plant burns natural gas
: A combined cycle power plant burns natural gas and produces 600MW and has an efficiency of 48%. Find the whole sale cost of natural gas and determine the cost of the fuel burned per second for the plant to produce it rated output of 600MW
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