What should you do for the following concepts before analyzing them? Choose from these options: A. Directly analyze this variable. B. Create a composite (e.g., the sum or mean) of the concept's indicators for each unit of analysis. C. Create a composite (e.g., the sum or mean) of the concept's indicators for each unit of analysis AND assess the reliability (internal consistency) of this concept's indicators (e.g., calculating Cronbach's alpha). D. For each dimension of this concept, create a composite (e.g., the sum or mean) of the dimension's indicators for each unit of analysis AND assess the reliability of indicators separately for each dimension (e.g., calculating Cronbach's alpha).

Slate is a daily magazine on the Web. Its business activities can be described by a number of variables. What is the level of measurement for each of the following variables?The number of hits on their website on Saturday between 8:00 am and 9:00 am.The departments, such as food and drink, politics, foreign policy, sports, etc.The number of weekly hits on the Sam’s Club ad.The number of years each employee has been employed with Slate.

In a study looking at undergraduate students’ perceptions of sense of community at their university, a researcher hypothesizes that the farther away students live from campus (in miles), the less they feel they are part of the university community. The researcher collected data for the following two variables – miles from campus and part of community (rating from 1-10 of how much they felt part of the university community). What is the proposed analysis and why you chose the analysis?   Scales of measurement (i.e., nominal, ordinal, interval or ratio) for variable(s) that will be used in the analysis:   What is the null and alternative hypotheses (based on context of study) in symbols?   What is the test assumptions and make a decision?   Inferential statistic(s) and p-value(s)?   What is your decision?   What is the conclusion?   Based on your decision, identify and explain the type of error you could make?

The key measure of disease occurrence for assessing risk of a disease:   Question 13 options:   is primarily incidence data.   is primarily prevalence data.   could equally be both incidence and prevalence data.   is neither incidence data nor prevalence data.

Suppose you were to collect data for the following pair of variables, gasoline: number of miles driven since your last fill up, gallons of gas remaining in your tank. You want to make a scatterplot. Which variable would you use as the explanatory variable? number of miles driven since your last fill up gallons of gas remaining in your tank Which variable would you use as the response variable? O number of miles driven since your last fill up gallons of gas remaining in your tank Would you expect to see a positive or negative association? positive negative O neither

Can I get some help with this :)

Is plate number a variable in the given problem? If yes, what type of variable? Is it a quantitative or categorical variable? The problem is: John is a car buff who wants to find out more about the vehicles that his classmates drive. He gets permission to go to the student parking lot and record some data. Later, he did some Internet research on each model of car he found. Finally, John makes a spreadsheet that includes each car’s license plate, model, year, color, highway gas mileage, weight, and whether it has a navigation system.

I'm a bit confused by the wording of step two in this project's procedure (posted below). My brain may be a bit fried at the moment but it sounds like it is asking for three variables (one categorical and two continous). Am I correct in thinking this?   Procedure: Devise two research questions based on the variables in the Student Data Table. Identify the variables to be utilized. One should be categorical (which may be created from a continuous variable, i.e., variable months enrolled at TESU; Categories: less than one year and one or more years) and two should be continuous variables. Use descriptive statistics to describe the variables both numerically and graphically. Devise hypotheses for both research questions. Identify the appropriate statistical tests using alpha=0.05. Perform the statistical tests. Write up the results.   Variables in the dataset: TESU school in which you are enrolled    Arts and Sciences Applied Science and Technology Business and Management…

Thompson Photo Works purchased several new, highly sophisticated processing machines. The production department needed some guidance with respect to qualifications needed by an operator. Is age a factor? Is the length of service as an operator (in years) important? To evaluate the factors needed to estimate performance on the new processing machines, four variables were selected: x1 = Length of time an employee was in the industryx2 = Mechanical aptitude test scorex3 = Prior on-the-job ratingx4 = Age Performance on the new machine is designated y.Thirty employees were randomly selected and data were collected for each of the variables. A few results follow:    Performance on New Machine, Length of Time in Industry, Mechanical Aptitude Score, Prior On-the-Job Performance, Age, Name y x1 x2 x3 x4 Mike Miraglia 111   6   300   129   45   Sue Trythall 115   10   327   121   26      The equation is:yˆy⁢^⁢  = 10.8 + 0.7x1 + 0.386x2 + 0.112x3 + 0.001x4 d. As age increases by one…

An educational psychologist is comparing two instructional approaches. She teaches people using visual aids for Approach A, and uses verbal materials for Approach B, and then gives a test after using each approach. The same individuals were used as students of both instructional approaches. She thinks people learn differently when they have visual aids than verbal materials. Approach A:Mean: 26.0 Std. Dev: 8.5 N: 16 Approach B:Mean: 27.0 std. dev: 10.0 N = 16 Difference A-B:mean : -1.0 Std. Dev: 14.0 N = 16 A). What is the type of test you will use? (z-test, single-sample t-test, paired-samples t-test, or independent samples t-test) and why (what information provided in the problem) B). What are the hypotheses (Be Specific)