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

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related 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
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT