BigShots,Inc.is a specialty e-tailer that operates 87 catalog Web sites on the Internet.Kevin Conn,Sales Director,feels that the style (color scheme,graphics,fonts,etc.)of a Web site may affect its sales.He chooses three levels of design style (neon,old world and sophisticated)and randomly assigns six catalog Web sites to each design style.Kevin's null hypothesis is _____________.
A)$\mu$ 1 $\ge$ $\mu$ 2 $\ge$ $\mu$ 3
B)$\mu$ 1 $\neq$ $\mu$ 2 $\neq$ $\mu$ 3
C)$\mu$ 1 = $\mu$ 2 = $\mu$ 3
D)$\mu$ 1 $\le$ $\mu$ 2 $\le$ $\mu$ 3
E)$\mu$ 1 $\le$ $\mu$ 2 $\ge$ $\mu$ 3

Question

BigShots,Inc.is a specialty e-tailer that operates 87 catalog Web sites on the Internet.Kevin Conn,Sales Director,feels that the style (color scheme,graphics,fonts,etc.)of a Web site may affect its sales.He chooses three levels of design style (neon,old world and sophisticated)and randomly assigns six catalog Web sites to each design style.Kevin's null hypothesis is _____________.
A)$\mu$ 1 $\ge$ $\mu$  2 $\ge$ $\mu$ 3
B)$\mu$ 1 $\neq$ $\mu$  2 $\neq$ $\mu$ 3
C)$\mu$ 1 = $\mu$  2 = $\mu$ 3
D)$\mu$ 1 $\le$ $\mu$  2 $\le$ $\mu$ 3
E)$\mu$ 1 $\le$ $\mu$  2 $\ge$ $\mu$ 3

Quizplus · Accepted Answer

The null hypothesis in this context is that there is no effect of the design style on sales, meaning the average sales (μ) for each design style (neon, old world, sophisticated) are equal.

BigShots,Inc μ\muμ 1 ≥\ge≥ μ\muμ 2 ≥\ge≥ μ\muμ 3 B) μ\muμ 1 ≠\neq= μ\muμ 2 ≠\neq=

BigShots,Inc $\mu$ 1 $\ge$ $\mu$ 2 $\ge$ $\mu$ 3
B) $\mu$ 1 $\neq$ $\mu$ 2 $\neq$