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Complete the problems below and submit your work in an Excel document. Be sure to show all of your work and clearly label all calculations. All statistical calculations will use the Employee Salary Data Set.
1. Based on the sample data, can the average(mean) salary in the population be the same for each of the grade levels? (Assume equal variance, and use the Analysis Toolpak or the StatPlus:mac LE software function ANOVA.) Set up the input table/range to use as follows: Put all of the salary values for each grade under the appropriate grade label.Be sure to include the null and alternate hypothesis along with the statistical test and result.
2. The table and analysis below demonstrate a 2-way ANOVA with replication. Please interpret the results.
3. Using our sample results, can we say that the compa values in the population are equal by grade and/or gender, and are independent of each factor?
4. Pick any other variable you are interested in and do a simple 2-way ANOVA without replication. Why did you pick this variable and what do the results show?
5. Using the results for this week, What are your conclusions about gender equal pay for equal work at this point?
Assuming that we want to use methods of this section to test claim that Wednesday and Sunday rainfall amounts have same standard deviation, identify the F test statistic, critical value, and conclusion.
Airtran's flight #307 can accomodate 50 passengers, but the flight is overbooked,as 52 tickets were sold. Each ticketed passenger can arrive lateand miss the flight with a probability 0.02. What is the probabilitythat no passenger arrives late? What ..
State the statistical assumptions of this test and using the data set and variables you have selected, use SPSS to calculate the Mean and Median.
In the past, the average age of employees of a large corporation has been 40 years. Recently, the company has been hiring older individuals. In order to determine whether there has been an increase in the average age of all the employees, a sample of..
What is the confidence level (in percentage) of the following confidence interval of M : X+- 2.45(s/(n)^2)
The average weekly earnings of the plumbers in a city is [Mu=$750] with a standard deviation of [s=$40]. Assume that we select a random sample of [n=64 plumbers], what is the probability that the sample mean [x] will be greater than $740 or greater t..
Management wishes to schedule workers with specific projects that minimizes total cost and gets all projects done, what would that minimized cost be and Part 1b Which project should be assigned to which worker for minimizing the total cost?
Find the proportion of Mastercard holders who have VISA cards. Interpret and write this proportion as a conditional probability.
Identify a business research topic, define the research questions for the identified problem or opportunity and select the appropriate research methodologies and techniques to use for the research project
The CDF of a certain random variable is given by F(x)= 1-9/(3+x)^2 where x>=0 What is the pearson-tukey discrete approximation for this distribution
Find an example of a pie chart or bar chart in a newspaper or magazine. Copy it, and hand it in with a written analysis of the information conveyed by the chart.
Vehicle speeds at a certain highway location are believed to be approximately normally distributed with a mean of 60 mph and standard deviation of 6 mph. For each of the following questions, fill in the blank with the appropriate speeds. Apply the Em..
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