Question
In: Statistics and Probability
A random sample of starting annual salaries for Lecturers from 2 Ghanaian universities is shown below...
A random sample of starting annual salaries for Lecturers from 2 Ghanaian universities is shown below (in thousands of GHc):
| UG | 63 | 70 | 72 | 65 | 70 | 69 | ||
| KNUST | 63 | 73 | 70 | 70 | 74 | 73 | 71 | 65 |
Formulate the hypotheses to determine if KNUST Lecturers are paid less than UG Lecturers?
Justify using both the critical value and p-value approaches. Assume alpha=5%
Solutions
orchestra answered 1 year agoRelated Solutions
For a random sample of 12 business graduates from a technical college, the starting salaries accepted...
For a random sample of 12 business graduates from a technical
college, the starting salaries accepted for employment on
graduation (in thousands of dollars) were the following:
26.2 29.3 31.3 28.7
27.4 25.1 26.0 27.2
27.5 29.8
32.6 34.6
For an independent random sample of 10 graduates from a state
university, the corresponding figures were as follows:
25.3 28.2 29.2
27.1 26.8 26.5 30.7
31.3 26.3 24.9
Analyze the data using the Mann-Whitney test, and comment on the
results....
Samples of starting annual salaries for individuals entering the public accounting and financial planning professions follow. Annual salaries are shown in thousands of dollars.
Samples of starting annual salaries for individuals entering the public accounting and financial planning professions follow. Annual salaries are shown in thousands of dollars.
Public Accountant
Financial Planner
50.2
49.0
59.8
49.2
55.3
54.1
57.2
54.9
53.2
50.9
56.0
52.6
50.9
50.7
59.5
54.9
58.0
50.8
52.9
48.9
(a)
Use a 0.05 level of significance and test the hypothesis that there is no difference between the starting annual salaries of public accountants and financial planners.
State the null and...
Below are the summary statistics for the starting annual salaries (in thousands of dollars) for individuals...
Below are the summary statistics for the starting annual
salaries (in thousands of dollars) for individuals entering the
public accounting and financial planning professions. If the level
of significance is 0.05, is there sufficient evidence that the mean
starting annual salaries for those entering public accounting are
higher than the mean starting salaries for those entering financial
planning? YES or NO?
Sample 1 (public accounting) xbar = 60.35 S = 3.25 n = 12
Sample 2 (fin. planning) xbar =...
Below are the summary statistics for the starting annual salaries (in thousands of dollars) for individuals...
Below are the summary statistics for the starting annual
salaries (in thousands of dollars) for individuals entering the
public accounting and financial planning professions. If the level
of significance is 0.05, and that you tested to see if the mean
starting annual salaries for those entering public accounting are
higher than the mean starting salaries for those entering financial
planning, what was the pValue for your test result?
Sample 1 (public accounting) xbar = 60.35 S = 3.25 n =...
The following is a random sample of the annual salaries of high school counselors in the...
The following is a random sample of the annual salaries of high
school counselors in the United States. Assuming that the
distribution of salaries is approximately normal, construct a 90%
confidence interval for the mean salary of high school counselors
across the United States. Round to the nearest dollar.
$55,250, $46,540, $42,120, $58,740, $38,010, $43,650,
$65,640
The following set of data represents the distribution of annual salaries of a random sample of...
The following set of data represents the distribution of annual
salaries of a random sample of
100managers in a large multinational
company:
Salary range (£` 000' )
Managers
20 but under 25
25 but under 30
30 but under 35
35 but under 40
40 but under 45
45 but under 50
5
10
25
35
25
5
Calculate the mean and standard deviation. [5 Marks]
The company chairman claims that the managers in the company
earn on average annual...
The data resulting from a random sample of 5 observations are shown below. Y is the...
The data resulting from a random sample of 5 observations are
shown below. Y is the dependent variable, and X1 and X2 are the
independent variables.
Observation
Y
X1
X2
1
87
95
11
2
86
94
11
3
84
94
11
4
83
93
12
5
84
93
12
Use Excel's Regression tool to answer the following questions.
To copy the data set, highlight the table, press Ctrl-c, click on
the Excel cell to which you want to copy,...
The monthly incomes from a random sample of workers in a factory are shown below: 18,14,12,14,12...
The monthly incomes from a random sample of workers in a factory
are shown below:
18,14,12,14,12
a. Compute the margin of error (in dollars) at 98%
confidence
b. Compute a 98% confidence interval for the mean of the
population. Assume the population has a normal distribution. Give
your answer in dollars.
The annual salaries (in dollars) for a random sample of 21 accounting executives in Toronto, Ontario...
The annual salaries (in dollars) for a random sample of 21
accounting executives in Toronto, Ontario are listed below:
57,860 66,863 91,982
66,979 66,940 82,976
67,073
72,006 73,496 72,972
66,169 65,983 55,646 62,758
58,012 63,756 75,536
60,403 70,445 61,507
66,555
What is the best estimate of the average annual salaries?
Determine the 95% confidence interval for the average Salaries.
Interpret its meaning.
An Analyst claims that the mean annual Salary for
advertising account executives in Toronto, Ontario...
R Assignment 2 Below are the average starting teacher salaries for the 50 states in...
R Assignment 2
Below are the average starting teacher salaries for
the 50 states in the US along with District of Columbia and Federal
Education Association for year 2016-2017.
Construct a histogram. Label the horizontal axis and give
histogram a heading. Describe
the shape of the distribution for your histogram.
State
Avg. Starting Salary
Alabama
$38,477
Alaska
$46,785
Arkansas
$33,973
Arizona
$34,068
California*
$44,782
Colorado
$32,980
Connecticut
$45,280
District of Columbia*
$51,359
Delaware
$41,415
Federal Education Association
$49,120
Florida...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- A conductive sphere with radius ? = 1 ? has been increased to the potential ?0...
- Define a char variable. Read a char value from the keyboard into the variable. Print the...
- If you wanted to store a birthday within code, what class would you use in Java?...
- Explain what is meant by the Theme Park internal and external business environment and use the...
- Description Write a program that prints out your name, the course ID of this class, what...
- A project has an initial cost of $65,475, expected net cash inflows of $12,000 per year...
- Make a program that lets the user enter a positive or negative integer as many times...
ADVERTISEMENT