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Lucy Baker Is Analyzing Demographic Characteristics of Two Television Programs σ\sigma

question 14

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Lucy Baker is analyzing demographic characteristics of two television programs, Lost (population 1) and Heroes (population 2) .Previous studies indicate no difference in the ages of the two audiences.(The mean age of each audience is the same.) Her staff randomly selected 100 people from each audience, and reported the following:  Lucy Baker is analyzing demographic characteristics of two television programs, Lost (population 1) and Heroes (population 2) .Previous studies indicate no difference in the ages of the two audiences.(The mean age of each audience is the same.) Her staff randomly selected 100 people from each audience, and reported the following:   <sub>1</sub> = 43 years and   <sub>2</sub> = 45 years.Assume that  \sigma <sub>1</sub> = 5 and  \sigma <sub>2</sub> = 8.With a two-tail test and  \alpha  = .05, the appropriate decision is ___. A) do not reject the null hypothesis  \mu <sub>1</sub> -  \mu <sub>2</sub> = 0 B) reject the null hypothesis  \mu <sub>1</sub> -  \mu <sub>2</sub> > 0 C) reject the null hypothesis  \mu <sub>1</sub> -  \mu <sub>2</sub> = 0 D) do not reject the null hypothesis  \mu <sub>1</sub> -  \mu <sub>2</sub> < 0 E) do nothing 1 = 43 years and  Lucy Baker is analyzing demographic characteristics of two television programs, Lost (population 1) and Heroes (population 2) .Previous studies indicate no difference in the ages of the two audiences.(The mean age of each audience is the same.) Her staff randomly selected 100 people from each audience, and reported the following:   <sub>1</sub> = 43 years and   <sub>2</sub> = 45 years.Assume that  \sigma <sub>1</sub> = 5 and  \sigma <sub>2</sub> = 8.With a two-tail test and  \alpha  = .05, the appropriate decision is ___. A) do not reject the null hypothesis  \mu <sub>1</sub> -  \mu <sub>2</sub> = 0 B) reject the null hypothesis  \mu <sub>1</sub> -  \mu <sub>2</sub> > 0 C) reject the null hypothesis  \mu <sub>1</sub> -  \mu <sub>2</sub> = 0 D) do not reject the null hypothesis  \mu <sub>1</sub> -  \mu <sub>2</sub> < 0 E) do nothing 2 = 45 years.Assume that σ\sigma 1 = 5 and σ\sigma 2 = 8.With a two-tail test and α\alpha = .05, the appropriate decision is ___.


Definitions:

Erased

Refers to the removal of lines, marks, or notations from drawings or documents, often during the revision process.

Dimensions

Measurements that define the size, shape, scale, or extent of something, usually represented in length, width, and height.

Engineering Drawings

Detailed plans or diagrams that communicate the design, dimensions, and manufacturing requirements of engineering objects or systems.

Width

The measurement of an object from one side to the other.

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