TABLE 12-12
Recent Studies Have Found That American Children Are

question 70

Multiple Choice

TABLE 12-12
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 average number of hours spent watching TV and weights are independent at 1% level of significance.
$$\begin{array} { l | c l l | r } & { \text { TV Hours } } & \\\text { Weights } & 0 - 3 & 3 - 6 & 6 + & \text { Total } \\\hline \text { More than } 101 \mathrm { ls } \text {. overweight } & 1 & 9 & 20 & 30 \\\text { Within } 101 \mathrm { bs } \text {. of normal weight } & 20 & 15 & 15 & 50 \\\text { More than } 10 \mathrm { lbs } \text {. underweight } & 10 & 5 & 5 & 20 \\\hline \text { Total } & 31 & 29 & 40 & 100\end{array}$$
-Referring to Table 12-12, suppose the value of the test statistic was 30.00 (which is not the correct value) and the critical value at 1% level of significance was 10.00 (which is not the correct value) , which of the following conclusions would be correct?

• A) We will reject the null and conclude that average number of hours spent watching TV and weights are independent.
• B) We will accept the null and conclude that average number of hours spent watching TV and weights are not independent.
• C) We will reject the null and conclude that average number of hours spent watching TV and weights are not independent.
• D) We will accept the null and conclude that average number of hours spent watching TV and weights are independent.

Understand the application of cloud-based services in business processes.

Recognize database design concepts, including keys in key-value databases.

Understand the importance of database availability and risk management.

Develop knowledge about the benefits and limitations of cloud technologies.

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Definitions:

Removed View

An additional view in drafting that is separated from the main drawing to clarify details of the object being depicted.

Secondary Aux View

An auxiliary view derived from a primary auxiliary view in drafting for the purpose of showing a part's features more clearly.

Primary Aux View

Refers to the primary auxiliary view, a secondary viewpoint generated in technical drawings to show features not visible or clear in the principal views.

True-Length Line

A line in a drawing that accurately represents the actual size and length of an object in the specified view.