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

question 63

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SCENARIO 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-yearolds 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. SCENARIO 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-yearolds 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.   -Referring to Scenario 12-12,how many children in the survey spent less than 2 hours watching TV and no more than 2 hours reading storybooks on average? A) 8 B) 130 C) 175 D) 687
-Referring to Scenario 12-12,how many children in the survey spent less than 2 hours watching TV and no more than 2 hours reading storybooks on average?


Definitions:

Average Total Cost

The total cost of production divided by the number of units produced, which includes both fixed and variable costs.

Average Total Cost

The total cost divided by the number of goods or services produced, representing the per unit cost of production.

Total Fixed Cost

Total fixed cost refers to the sum of all costs required to produce any output in which these costs do not change with the level of output.

Total Variable Cost

The total of expenses that vary directly with the volume of production or sales, such as materials and labor.

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