Which manufacturer would you recommend and why

Assignment Help Basic Statistics

Reference no: EM131436457

Manufacturing and Product Development

Many cities, towns, and college campuses use a rotary broom to sweep debris and snow from sidewalks. The pressure created by the broom is one measure of how effective the machine will be in removing debris. Random samples of rotary brooms from four manufacturers were obtained, and the pressure of each broom was measured (in psi). The data are given in the following table.

166_Table 09.jpg

a. Conduct the appropriate test to determine whether there is any evidence that at least two population mean pressures are different. Use a = 0.05.

b. Which manufacturer would you recommend and why?

Reference no: EM131436457

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