91Ó°ÊÓ

For the studies in Problems \(45-50,\) (a) identify the research objective, (b) identify the sample, (c) list the descriptive statistics, and (d) state the conclusions made in the study. Go to the Movies? Gallup News Service conducted a survey of 1,003 American adults aged 18 years or older, December \(5-8,2004 .\) The respondents were asked, "How many movies, if any, have you attended in a movie theater in the past 12 months?" Of the 1,003 adults surveyed, \(65 \%\) said they attended at least one movie in a movie theater in the past 12 months. Gallup News Service concluded that \(65 \%\) of all Americans aged 18 years or older attended at least one movie in a movie theater in the past 12 months.

Step by step solution

01

Identify the Research Objective

Determine what the study aims to investigate. Here, the research objective is to find out how many movies American adults aged 18 years or older attended in a theater in the past 12 months.

02

Identify the Sample

Identify the group of people from which data was collected. In this case, the sample consists of 1,003 American adults aged 18 years or older, surveyed by Gallup News Service between December 5-8, 2004.

03

List the Descriptive Statistics

Report the key numerical values summarizing the sample data. 65% of the 1,003 American adults surveyed said they attended at least one movie in a movie theater in the past 12 months.

04

State the Conclusions

Summarize what the study concludes based on the sample data. Gallup News Service concluded that 65% of all Americans aged 18 years or older attended at least one movie in a movie theater in the past 12 months.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

research objective

The first step in any survey analysis is to clearly define the research objective. This objective guides the entire survey process, from designing the questions to analyzing the results. The research objective in this study is to determine the movie-going habits of American adults aged 18 or older over the past 12 months. Specifically, the study aims to find out how many movies these adults attended in a theater. This clear objective helps focus the survey and ensures relevant data is collected. Knowing the objective also helps in formulating conclusions that are directly linked to the initial goal.

sample identification

Sample identification is crucial for ensuring that the survey results are meaningful and representative. The sample in this case consists of 1,003 American adults aged 18 years or older. These individuals were surveyed by Gallup News Service between December 5-8, 2004. Identifying a proper sample involves choosing participants who closely represent the larger population. A well-chosen sample can provide insights that are generalizable to the entire population. Selecting a diverse and sufficient sample size is important to obtain reliable and valid results.

descriptive statistics

Descriptive statistics summarize the main features of a dataset. They provide a simple summary about the sample and its measures. In this survey, the key descriptive statistic is that 65% of the 1,003 American adults surveyed reported attending at least one movie in a theater in the past 12 months. Descriptive statistics help in understanding the basic trends and patterns within the data. They are the initial step before more complex data analysis techniques are applied. Common forms of descriptive statistics include averages, percentages, and standard deviations.

study conclusions

The final step in survey analysis is to draw conclusions from the data. These conclusions should directly answer the research objective. Based on the sample data, Gallup News Service concluded that 65% of all American adults aged 18 years or older attended at least one movie in a theater in the past 12 months. This conclusion extrapolates the sample findings to the broader population and provides meaningful insights. Conclusions help policymakers, businesses, and researchers make informed decisions. It's crucial to highlight that conclusions should be supported by the data collected and should mention any potential limitations or biases in the study.