DQ 9 Hypothesis Testing

Consumer goods manufacturing companies may use t-tests to determine if the quality of their products is consistent. Hellmann’s for example may randomly test 100 bottles of mayonnaise to calculate the mean weight along with the standard deviation of the bottles. The mean weight of the 100 bottles is then compared to the weight stated on the bottle which would be the population mean. Hellmann’s would not want significant differences between the mean weight of the sample and the population mean.

Identify another real world situation where we would compare the sample mean to the population mean. How would a test be conducted to determine if the sample mean is significantly different from the population mean?

Topic

Is the obvious answer always the end result? The hare was expected to win the race between the tortoise and the hare. Goliath was expected to come out on top with David and Goliath. In the case of a fox vs. a chicken, the outcome is predictable and the chicken becomes the fox’s dinner.

To complete the Discussion activity, please do the following:

Answer each question fully. Use a minimum of 250 words for a complete discussion post. While it is not required in this discussion, feel free to bring in outside resources to support your answers. Outside resources include materials outside of the textbook, such as a website.

• What factors should we consider when determining why the chicken “loses” to the fox?
• A chicken can fly and perch on higher places than the fox can likely get to. Does one animal have worse hearing than the other? Or are its other senses not as keen? Does one animal sleep more soundly or just more than the other?
• What necessary information would you need to determine why one of these animals (the fox) tends to always come out on top when in some other scenarios the obvious result does not turn out as expected? Fully explain your rationale.
• Identify a different real-world situation and interpret the results of the outcome. Were the results expected? Fully explain your rationale.

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