Question
In: Statistics and Probability
The following data give the weight (in kg) of all six employees of a company. 61...
The following data give the weight (in kg) of all six employees of a company.
61 73 53 48 68 89
a. Construct the population distribution of the weight of the employees. [3 marks]
b. List all the possible samples of size four (without replacement) that can be selected from this population. [10 marks]
c. Calculate the mean for each of the samples in part (b). [4 marks]
d. Write the sampling distribution of ?̅. [4 marks]
e. Compute the sampling errors for the samples in part (b). [4 marks]
f. Show that ??̅= ? √? √ ?−? ?−1 . [
Solutions
orchestra answered 2 years agoRelated Solutions
The following data give the weight (in kg) of all six employees of a company. 61...
The following data give the weight (in kg) of all six employees
of a company. 61 73 53 48 68 89
a. Construct the population distribution of the weight of the
employees. [3 marks]
b. List all the possible samples of size four (without
replacement) that can be selected from this population. [10
marks]
c. Calculate the mean for each of the samples in part (b). [4
marks]
d. Write the sampling distribution of ?̅. [4 marks]
e. Compute the...
The following data give the weight (in kg) of all six employees of a company. 61...
The following data give the weight (in
kg) of all six employees of a company.
61
73
53
48
68
89
Construct the population distribution of the weight of the
employees.
[3 marks]
List all the possible samples of size four (without
replacement) that can be selected from this population.
[10 marks]
Calculate the mean for each of the samples in part (b).
[4 marks]
Write the sampling distribution of ?̅.
[4 marks]
Compute the sampling errors for the samples...
Consider the following data set regarding six company employees who report to the same manager in...
Consider the following data set regarding six company employees
who report to the same manager in a local office:
Employee
A
Birth Place
B Monthly Salary (Nearest Dollar)
C
Current Rating
D
Rating Score
(1.0 – 5.0)
E
Driving Distance Residence to Office
(Miles)
F
Parking Permits Issued
Sue
Williamsburg, VA
2,916
Meets
3.2
2.3
1
Fred
Boone, NC
2,500
Below
1.8
20.2
1
Mark
Key West, FL
1,000
Meets
2.9
0.5
0
Dontay
Smugglers Notch, VT
2,000
Exceeds
4.3...
In a sample of 61 business trips taken by employees in the HR department, a company...
In a sample of 61 business trips taken by employees in the HR
department, a company finds that the average amount spent for the
trips was $1480 with a standard deviation of $450. In a sample of
101 trips taken by the employees in the sales department is $1650
with a standard deviation of $550. When testing the hypothesis (at
the 5% level of significance) that the average
amount spent on trips taken by the sales department are higher than...
61) Which of the following is an example of information as opposed to just data: ...
61) Which
of the following is an example of information as opposed to just
data:
A) Number of dresses sold.
B) Color of dresses sold.
C) Dress sales in Michigan at Walmart Store
#3458.
D) Types of dresses sold per region and
season.
62) Which
of the following statements is most true:
A) Relevant information does not help predict the
future.
B) There are sometimes tradeoffs between
information that is relevant and a faithful...
61. All of the following are signs and symptoms of fecal impaction except * a. passing...
61. All of the following are signs and symptoms of fecal
impaction except *
a. passing excessive flatus.
b. fever.
c. abdominal bloating.
d. increased appetite.
62. Signs and symptoms of a heart attack include *
a. swallowing.
b. crushing chest pain.
c. edema.
d. elevated blood pressure.
63. If you work in a health care facility, you should be tested
for tuberculosis *
a. weekly.
b. monthly.
c. before you begin work.
d. every five years.
64. A late...
The following are the ages of all employees of a small company: 18, 56, 40, 40,...
The following are the ages of all employees of a small
company:
18, 56, 40, 40, 51,51 56, 45, 48, 49 ,70
a) Find the sample mean
b) Find the sample median
c) Find the sample mode
d) Find .the sample range
e) Find the lower and upper quartiles, and the sample
interquartile range IQR Q1= Q3= IQR=
f) Display the data with a boxplot (with fences
andwhiskers).
Calculate Fences:
g) Write a brief description of this data (symmetry,
outliers)....
In a survey of 200 employees of a company regarding their 401(k) investments, the following data...
In a survey of 200 employees of a company regarding their 401(k)
investments, the following data were obtained.
131
had
investments in stock funds.
92
had
investments in bond funds.
67
had
investments in money market funds.
49
had
investments in stock funds and bond funds.
34
had
investments in stock funds and money market funds.
35
had
investments in bond funds and money market funds.
22
had
investments in stock funds, bond funds, and money market
funds.
(a) What...
As the head of a small insurance company with six employees, you are concerned about how...
As the head of a small insurance company with six employees, you
are concerned about how effectively your company is using its
networking and human resources. Budgets are tight, and you are
struggling to meet payrolls because employees are reporting many
overtime hours. You do not believe that the employees have a
sufficiently heavy work load to warrant working longer hours and
are looking into the amount of time they spend on the Internet.
Each employee uses a computer with...
The following data give the odometer mileage (rounded to the nearest thousand miles) for all 20...
The following data give the odometer mileage (rounded to the
nearest thousand miles) for all 20 cars that are for sale at a
dealership.
61
88
58
83
71
40
27
38
52
43
27
40
90
43
95
35
28
47
88
76
a. Calculate the values of the three quartiles
and the interquartile range.
Q1 =
Q2 =
Q3 =
IQR =
b. Find the approximate value of the
19th percentile.
c. Calculate the percentile rank of 71....
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