Consider the Following to Answer the Question(s) Below

question 20

Multiple Choice

Consider the following to answer the question(s) below:
What affects 4K Ultra HD Smart TV sales? TVs are sold through a variety of outlets. Sales figures (number of units) for the Samsung 7 Series were obtained for last quarter from a sample of 30 different stores. Also collected were data on the selling price and amount spent on advertising the Samsung 7 Series (as a percentage of total advertising expenditure in the previous quarter) at each store. Below are the results.
-Which of the following statements is true at α = .05?

• A) The multiple regression model is not significant overall.
• B) Price is not a significant independent variable in explaining Samsung 7 Series sales.
• C) There is no evidence that Advertising is a significant independent variable in explaining Samsung 7 Series sales.
• D) All we can say is that the multiple regression model is significant overall and only Price is a significant independent variable in explaining Samsung 7 Series sales.
• E) We can say that the multiple regression model is significant overall. Also, both variables (Price and Advertising) are significant in explaining Samsung 7 Series sales.

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Definitions:

Mechanical Isolation

an evolutionary mechanism that prevents species from interbreeding due to physical differences in reproductive structures.

Hybrid Inviability

A condition where hybrid offspring fail to develop or reach sexual maturity, reducing gene flow between different species or populations.

Hybrid Sterility

A condition where offspring from the cross between two different species are infertile, preventing them from producing offspring.

Postzygotic Barrier

One of several reproductive isolating mechanisms that prevent gene flow between species after fertilization has taken place (e.g., hybrid inviability, hybrid sterility, and hybrid breakdown). Compare with prezygotic barrier.