1. SPSS . Computation and Interpretation (Basic Statistics):

The Whitewater Trucking Company delivers freight in and about Southeast Wisconsin. The number of tons of freight Whitewater Trucking Company has delivered the past 24 days is shown in the following table. [You should employ SPSS to solve this problem or only 70% partial credits will be given]

1. Please summarize the data using the usual statistical measures for location (i.e., mean and median)
2. Please summarize the data using the usual statistical measures for variability (i.e., sample standard deviation and sample variance)
3. Please report the standard error of the mean and illustrate its relationship with the sample standard deviation (you may check the Buzzword PPS for hints;)

Table I. Whitewater Freight Delivered in Tons (24 Days)

45 39 41 46 44 44 41 43

40 40 43 37 46 46 46 43

44 37 43 35 48 48 46 44

You may want to double check the accuracy of your data entry effect. After all, we should try our best to avoid the GIGO (Garbage In, Garbage Out) effect.

3.) SPSS computation and Interpretation (Regression): Download the "2009FinalExamData1_OnlineSurveyResponses.sav" file from D2L Module 6 (YES, it is the same data file that should have already been downloaded for Question #2). This data set consists of 96 MBA students’ perception/attitude toward social media usage. You should find the variable definition by clicking the SPSS "Variable View" for details. Another novice researcher (let’s call this individual "Researcher BBB") would like to build a multiple regression model

y = β 0 + β 1 x1 + β 2 x2 + error,

where y = fun, x1 = activeuser, x2 = gender).

1. Is the overall model statistically useful for predicting y? Test using alpha(α) = .05
2. Conduct a test for the gender effect at α = .05
3. Examine whether an average "active social media users" would consider using social media a fun activity than an average/typical "non-active media users" (i.e., examine whether the sign related to variable x 1 is a negative one in the above regression model)
4. What is the 98% Confidence Interval for β -estimate related to variable x2 (i.e., gender)? If you only know how to obtain a 95% C.I., you can still earn up to 5 points for this question.

Price: $10.76

Solution: The downloadable solution consists of 5 pages, 576 words and 2 charts.
Deliverable: Word Document