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A Study Was Conducted to Test the Effectiveness of Supermarket

question 76

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A study was conducted to test the effectiveness of supermarket sales strategies. At one supermarket, the price level (regular, reduced price, and at cost to supermarket) and display level (normal display space, normal display space plus end-of-aisle display, and twice the normal display space) were tested to determine if they had any effect on the weekly sales of a particular supermarket product. Each of the combinations of price level and display level were put in place for a randomly selected week and the weekly sales of the product was recorded. Each combination was used three times over the course of the experiment. The results of the study are shown here:  A study was conducted to test the effectiveness of supermarket sales strategies. At one supermarket, the price level (regular, reduced price, and at cost to supermarket)  and display level (normal display space, normal display space plus end-of-aisle display, and twice the normal display space)  were tested to determine if they had any effect on the weekly sales of a particular supermarket product. Each of the combinations of price level and display level were put in place for a randomly selected week and the weekly sales of the product was recorded. Each combination was used three times over the course of the experiment. The results of the study are shown here:     \begin{array}{llcc}  \text { The ANOVA table is shown below: }\\ \begin{array} { l | c | c | c | c | c }  \text { Source } & \text { DF } & \text { SS } & \text { MS } & \text { F } & \mathrm { P } \\ \hline \text { Display } & 2 & 1691393 & 845696 & 1709.37 & 0.0000 \\ \text { Price } & 2 & 3089054 & 154427 & 3121.89 & 0.0000 \\ \text { Display*Price } & 4 & 510705 & 127676 & 258.07 & 0.0000 \\ \text { Error } & 18 & 8905 & 495 & & \\ \text { Total } & 26 & 5300057 & & & \end{array} \end{array}  Which of the following tests should be conducted first? A)  A test of the Display Main Effect. B)  A test of the Weekly Sales Main Effect. C)  A test of the Price Main Effect. D)  A test of the interaction between Price and Display.

 The ANOVA table is shown below:  Source  DF  SS  MS  F P Display 216913938456961709.370.0000 Price 230890541544273121.890.0000 Display*Price 4510705127676258.070.0000 Error 188905495 Total 265300057\begin{array}{llcc}\text { The ANOVA table is shown below: }\\\begin{array} { l | c | c | c | c | c } \text { Source } & \text { DF } & \text { SS } & \text { MS } & \text { F } & \mathrm { P } \\\hline \text { Display } & 2 & 1691393 & 845696 & 1709.37 & 0.0000 \\\text { Price } & 2 & 3089054 & 154427 & 3121.89 & 0.0000 \\\text { Display*Price } & 4 & 510705 & 127676 & 258.07 & 0.0000 \\\text { Error } & 18 & 8905 & 495 & & \\\text { Total } & 26 & 5300057 & & &\end{array}\end{array} Which of the following tests should be conducted first?

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Definitions:

Working Memory

A mental processing unit with finite abilities, intended for the brief storage of information for further processing.

Neurotransmitter

Chemical messengers that transmit signals across synapses from one neuron to another within the nervous system.

Kandel and Schwartz

Eric Kandel and James Schwartz, neuroscientists known for their research on the physiological basis of memory storage in neurons.

Hippocampus

A critical brain structure involved in forming new memories and is associated with learning and emotions.

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