· What is the F probability distribution? In what way does it differ from a t probability distribution?

· In an ANOVA, what is between group difference and what is within group difference?

· What is covariance and how does it differ from correlation?

Activity 11 – SPSS (or Excel) – CLO 5, CLO 6

Note: If you do not have access to SPSS, you can do this assignment in Excel

A car manufacturer is introducing a new model, and they claim that the average fuel consumption for this model is 35 miles or more per gallon on the open road. The competitors believe this estimate is too high. You are employed by a testing agency to run a statistical test and verify the car manufacturer’s claim. You conduct a highway mileage test on 80 cars and save the results in an Excel file. Upload the Excel file CarEfficiency and save it in SPSS data format for future use. The data are available on GAP under the “Supplemental Material” folder. Complete the following tasks and copy your results in a word document and submit your report.

1. Examine if the sample data follows a normal distribution using the Explore feature under the Descriptive Statistics in SPSS (or Insert Statistic Chart in Excel).

2. Construct a confidence interval for the population mean at 99% confidence level.

3. Conduct a test of hypothesis at 1% significance level to verify if the car manufacturer’s claim is justified. State the null and alternative hypotheses in the proper conventional form.

Discussion Question 6 – CLO 8, CLO 9, CLO 10 (about 400-500 words and at least one reference)

Use the article you chose in the Week 2 Discussion to discuss the study’s significance to the research field and related professional practice:

1. The main contribution of the author to the field of study and generalizability of the research findings

1. The value of the study for the related professional practice and the social impact of the research

In addition to the textbook, include a minimum of two (2) scholarly references and cite them within the text of your discussion.

Respond to at least one peer enhancing the collaborative learning environment.

Article: Fernandez, F., M., Bornay-Barrachina, M., & Lopez-Cabrales, A. (2017). HRM practices and innovation performance: A panel-data approach. International Journal of Manpower, 38 (3), 354-372. http:doi.org/10.1108/IJM-02-2015-0028