For the studies in Problems 45-50, (a) identify the research...

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.

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.

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Key Concepts

Research Objective

This concept refers to the underlying purpose of the study, which is to gain insights into a specific behavior or trend. In general, it involves defining what the study aims to measure or understand, such as the frequency or prevalence of a particular activity within a population.

Sample

The sample is the subset of the population selected for the survey or study. An appropriate sample should be representative of the larger population, allowing researchers to draw meaningful conclusions about the entire group based on the sample responses.

Descriptive Statistics

Descriptive statistics are numerical summaries that describe the main features of the data collected from the study. They commonly include measures like percentage distributions, frequencies, and averages, which help in understanding patterns and trends within the collected data.

Conclusions

The conclusions are the final interpretations and inferences drawn from the data analysis of the study. They summarize how the findings from the sample can be generalized to the larger population, and they address whether the objectives of the study were met based on the evidence gathered.

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