The Times (In Minutes) to Assemble a Component for Three

question 6

Multiple Choice

The times (in minutes) to assemble a component for three different cell phones are listed below. Use α= 0.01.Which of the following is correct? $$\begin{array} { c | c | c } \text { Phone } 1 & \text { Phone } 2 & \text { Phone } 3 \\\hline 32 & 40 & 25 \\30 & 29 & 31 \\31 & 38 & 29 \\32 & 33 & 28 \\33 & 36 & \\31 & 32 & \\& 35 &\end{array}$$

• A) The mean time to assemble Phone 1 is the same as the mean time to assemble Phone 2.
• B) The mean time to assemble Phone 1 is different from the mean time to assemble Phone 3.
• C) The mean time to assemble Phone 2 is the same as the mean time to assemble Phone 3.
• D) There is not enough evidence to suggest that the means are different.

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Definitions:

Effect Size

A quantitative measure of the strength of a phenomenon, used to indicate the magnitude of a difference or relationship in statistical research.

Standard Deviations

A statistical measure that describes the amount of variation or dispersion from the average in a set of data.

Effect Size

A quantitative measure of the magnitude of the experimental effect, aiding in the understanding of the practical significance of research findings.

Work Hours

This term refers to the amount of time an individual spends at work or performing work-related tasks during a specified period.