Chapter 11: Q. 53 (page 658)
Which test do you use to decide whether an observed distribution is the same as an expected distribution?
Short Answer
The goodness-fit-test .
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Chapter 11: Q. 53 (page 658)
Which test do you use to decide whether an observed distribution is the same as an expected distribution?
The goodness-fit-test .
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What can you conclude at the significance level ?
What is the p-value?
A market researcher wants to see if two different stores have the same distribution of sales throughout the year. What type of test should he use?
The manager of "Frenchies" is concerned that patrons are not consistently receiving the same amount of French fries with each order. The chef claims that the standard deviation for a ten-ounce order of fries is at most oz., but the manager thinks that it may be higher. He randomly weighs orders of fries, which yields a mean of oz. and a standard deviation of two oz.
Do families and singles have the same distribution of cars? Use a level of significance of . Suppose that randomly selected families and randomly selected singles were asked what type of car they drove: sport, sedan, hatchback, truck, van/SUV. The results are shown in Table Do families and singles have the same distribution of cars? Test at a level of significance of .

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