Use the Following Information for Questions -Which of the Following Choices Represents the Highest and Lowest

question 79

Multiple Choice

Use the following information for questions . $\begin{array}{lll}&\text { \# Machine}& \text { Maintenance }\\\underline{\text { Month }} &\underline{ \text { Hours X }}& \underline{\text { Costs Y}}\\\text { Jan } & 3,000 & \$ 440 \\\text { Feb } & 4,500 & \$ 690 \\\text { Mar } & 8,000 & \$ 510 \\\text { Apr } & 7,000 & \$ 600 \\\text { May } & 6,000 & \$ 550 \\\text { Jun } & 9,000 & \$ 980 \\\text { Jul } & 3,500 & \$ 840 \\\text { Auq } & 5,500 & \$ 600\end{array}$

-Which of the following choices represents the highest and lowest respective coordinates of activity level and corresponding total costs?

• A)(3,000 units, $440), (9,000 units, $980)
• B)(9,000 units, $980), (3,000 units, $440)
• C)($3,000, 440 units), ($9,000, 980 units)
• D)($9,000, 980 units), ($3,000, 440 units)

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Definitions:

T-statistic

A type of statistic used in hypothesis testing, calculated as the difference between an observed sample mean and a hypothesized population mean, divided by the standard error of the mean.

Level of Significance

The level of significance is a threshold set by the researcher to determine the cutoff at which the null hypothesis can be rejected, commonly represented by alpha (α).

T-statistic

A statistical measure used to analyze the difference between two group means in relation to the variance observed within the groups.

Alpha

Alpha, often represented as α, is the threshold probability of committing a Type I Error, typically set at 0.05 or 5% in hypothesis testing.