Questions from Applied Statistics

Q: In a one-factor ANOVA with n1 = 7, n2

In a one-factor ANOVA with n1 = 7, n2 = 6, n3 = 5, n4 = 5, and n5 = 7, the sample standard deviations were s1 = 12, s2 = 24, s3 = 16, s4 = 46, and s5 = 27. For Hartley’s test: (a). State the hypothe...

Q: For each data set, use Hartley’s test to test the hypothesis

For each data set, use Hartley’s test to test the hypothesis of equal variances, using the 5 percent table of critical values from Table 11.5 and the largest and smallest sample vari...

Q: For each data set, use Hartley’s test to test the hypothesis

For each data set, use Hartley’s test to test the hypothesis of equal variances, using the 5 percent table of critical values from Table 11.5 and the largest and smallest sample vari...

Q: Construct a 95 percent confidence interval for the difference of mean monthly

Construct a 95 percent confidence interval for the difference of mean monthly rent paid by undergraduates and graduate students. What do you conclude?

Q: For each data set, use Hartley’s test to test the hypothesis

For each data set, use Hartley’s test to test the hypothesis of equal variances, using the 5 percent table of critical values from Table 11.5 and the largest and smallest sample vari...

Q: Using the following Excel results: / (

Using the following Excel results: (a). What was the overall sample size? (b). How many groups were there? (c). Write the hypotheses. (d). Find the critical value of F for α = .10....

Q: For each data set, use Hartley’s test to test the hypothesis

For each data set, use Hartley’s test to test the hypothesis of equal variances, using the 5 percent table of critical values from Table 11.5 and the largest and smallest sample vari...

Q: Concerned about Friday absenteeism, management examined absenteeism rates for the last

Concerned about Friday absenteeism, management examined absenteeism rates for the last three Fridays in four assembly plants. Does this sample provide sufficient evidence to conclude that there is a s...

Q: Engineers are testing company fleet vehicle fuel economy (miles per gallon

Engineers are testing company fleet vehicle fuel economy (miles per gallon) performance by using different types of fuel. One vehicle of each size is tested. Does this sample provide sufficient eviden...

Q: Five statistics professors are using the same textbook with the same syllabus

Five statistics professors are using the same textbook with the same syllabus and common exams. At the end of the semester, the department committee on instruction looked at average exam scores. Does...