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TABLE 12-13 Recent Studies Have Found That American Children Are More Obese

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TABLE 12-13
Recent studies have found that American children are more obese than in the past.The amount of time children spent watching television has received much of the blame.A survey of 100 ten-year-olds revealed the following with regards to weights and average number of hours a day spent watching television.We are interested in testing whether the mean number of hours spent watching TV and weights are independent at 1% level of significance. TABLE 12-13 Recent studies have found that American children are more obese than in the past.The amount of time children spent watching television has received much of the blame.A survey of 100 ten-year-olds revealed the following with regards to weights and average number of hours a day spent watching television.We are interested in testing whether the mean number of hours spent watching TV and weights are independent at 1% level of significance.   -A local real estate appraiser analyzed the sales prices of homes in 2 neighborhoods to the corresponding appraised values of the homes.The goal of the analysis was to compare the distribution of sale-to-appraised ratios from homes in the 2 neighborhoods.Random and independent samples were selected from the 2 neighborhoods from last year's homes sales,8 from each of the 2 neighborhoods.Identify the nonparametric method that would be used to analyze the data. A) χ<sup>2</sup> test for the differences among more than two proportions B) McNemar test for the difference between two proportions C) the Wilcoxon Rank Sum Test,using the test statistic T<sub>1</sub> D) χ<sup>2 </sup>test for the variance
-A local real estate appraiser analyzed the sales prices of homes in 2 neighborhoods to the corresponding appraised values of the homes.The goal of the analysis was to compare the distribution of sale-to-appraised ratios from homes in the 2 neighborhoods.Random and independent samples were selected from the 2 neighborhoods from last year's homes sales,8 from each of the 2 neighborhoods.Identify the nonparametric method that would be used to analyze the data.


Definitions:

Nonlabor Income

Income received that does not come from employment or work, such as dividends, interest on savings, or benefits.

Labor Supply

The total hours that workers are willing and able to work at a given wage rate.

Gross Demand

The total quantity of a good or service demanded across all market segments before considering supply constraints or competition.

Endowment

The initial allocation of goods, services, or wealth that an individual or entity possesses before entering any trade or transaction.

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