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Instruction 11-12
the Marketing Manager of a Company Producing a New

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Instruction 11-12
The marketing manager of a company producing a new cereal aimed for children wants to examine the effect of the colour and shape of the box's logo on the approval rating of the cereal. He combined four colours and three shapes to produce a total of 12 designs. Each logo was presented to two different groups (a total of 24 groups) and the approval rating for each was recorded and is shown below. The manager analysed these data using the ? = 0.05 level of significance for all inferences.
\quad \quad \quad \quad \quad \quad \quad \quad \quad  Colours \text { Colours }
 Shapes  Red  Green  Blue  Yellow  Circle 5467364544614441 Square 3456362136583025 Diamond 4660343148603833\begin{array} { | r | c | c | c | c| } \hline \text { Shapes } & \text { Red } & \text { Green } & \text { Blue } & \text { Yellow } \\\hline \text { Circle } & 54 & 67 & 36 & 45 \\\hline & 44 & 61 & 44 & 41 \\\hline \text { Square } & \mathbf { 3 4 } & 56 & 36 & 21 \\\hline & \mathbf { 3 6 } & 58 & 30 & \mathbf { 2 5 } \\\hline \text { Diamond } & 46 & \mathbf { 6 0 } & \mathbf { 3 4 } & \mathbf { 3 1 } \\\hline & 48 & \mathbf { 6 0 } & \mathbf { 3 8 } & \mathbf { 3 3 } \\\hline\end{array}  Instruction 11-12 The marketing manager of a company producing a new cereal aimed for children wants to examine the effect of the colour and shape of the box's logo on the approval rating of the cereal. He combined four colours and three shapes to produce a total of 12 designs. Each logo was presented to two different groups (a total of 24 groups) and the approval rating for each was recorded and is shown below. The manager analysed these data using the ? = 0.05 level of significance for all inferences.    \quad     \quad     \quad     \quad    \quad    \quad    \quad    \quad    \quad \text { Colours }   \begin{array} { | r | c | c | c | c| }  \hline \text { Shapes } & \text { Red } & \text { Green } & \text { Blue } & \text { Yellow } \\ \hline \text { Circle } & 54 & 67 & 36 & 45 \\ \hline & 44 & 61 & 44 & 41 \\ \hline \text { Square } & \mathbf { 3 4 } & 56 & 36 & 21 \\ \hline & \mathbf { 3 6 } & 58 & 30 & \mathbf { 2 5 } \\ \hline \text { Diamond } & 46 & \mathbf { 6 0 } & \mathbf { 3 4 } & \mathbf { 3 1 } \\ \hline & 48 & \mathbf { 6 0 } & \mathbf { 3 8 } & \mathbf { 3 3 } \\ \hline \end{array}    -Referring to Instruction 11-12,the critical value in the test for significant differences between shapes is ________.
-Referring to Instruction 11-12,the critical value in the test for significant differences between shapes is ________.


Definitions:

Rates of Return

Rates of return measure the net gain or loss of an investment over a specified period, expressed as a percentage of the investment’s initial cost.

Standard Deviations

A measure of variability that quantifies the extent of deviations of a set of data points from their mean.

N Risky Securities

A term referring to a collection of investments that carry a significant level of risk, where 'N' indicates the number or variety of such risky assets.

Risk Level

The potential for losing something of value, measured in the context of investment as the uncertainty regarding the return or the possibility of losing some or all of the original investment.

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