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Please use Excel to solve the statistics problem. It is EXTREMELY important that you use EXCEL and prepare a written discussion of problem to accompany the numerical calculations. You should attach the Excel file.
The MBA department is concerned that dual degree students may be receiving lower grades than the regular MBA students. Two independent random samples have been selected. 100 observations from population 1 (dual degree students) and 100 from population 2 (MBA students). The sample means obtained are X1(bar)=84 and X2(bar)=87. It is known from previous studies that the population variances are 4.0 and 5.0 respectively. Using a level of significance of .10, is there evidence that the dual degree students are receiving lower grades? Fully explain your answer.
Which statement is true for a statistical study?
If employee is chosen at random, determine these probabilities.The Employee smokes, The employees smokes, given that he/she graduated from college.
You are given the sample mean and the sample standard deviation. use this information to construct the 90% and 95% confidence intervals for the population mean.
A random selection of accounting firms from three regions is taken and they are asked to state the starting salary for a new accounting graduate. Do a one-way ANOVA to analyze these data using a 1% level of significance:
Consider the following age data, which is the result of selecting a random sample of 20 United Airlines pilots.
Suppose these data represent whole population. Determine the population mean and population standard deviation.
Place the steps below in the correct order for the construction of a control chart.
Complete the ANOVA table. Carry out a test of hypothesis on each of regression coefficients. Could you delete any of the variables?
An urn contains 8 balls identical in every respect except color. There are 4 blue balls, 3 red balls, and 1 white ball.
Carry out t test and find out whether or not demand and unit price are related. Let a=.05. Carry out an F test and find out whether or not demand and unit price are related.
A test consists of multiple-choice questions, each having four possible answers (a,b,c,d) one of which is correct. Assuming that you guess the answers to six such questions.
For the following ANOVA table are the results from treating 4 cultures with 6 observations for each culture. The enzymes are contained in test tubes with differing levels of enzymes applied.
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