Question 8 Background Name That Scenario: Social Networking and Online Communica

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Question 8 Background Name That Scenario: Social Networking and Online Communication Social networking and online communication have revolutionized modern communication. A professor of communications collected data on the social networking and online communication habits of a random sample of undergraduate college students. She has a number of questions of interest she would like to use the data to address but she is not sure which statistical technique to us. One important aspect in statistics is to understand which statistical methods or procedures are appropriate to use to address the research problem or question of interest. For each of the five research questions below, you are asked to select the corresponding statistical analysis technique most appropriate for addressing that research question. Note this involves selecting both the type of procedure (confidence interval or hypothesis test) and the parameter of interest. Question 8 Subquestions 8.a. Research Question #1: point(s) Among the population of all undergraduate college students, she wants to assess if the proportion of women with a facebook account is higher that the proportion of men with a facebook account. Confidence Interval to estimate one population proportion Hypothesis Test about one population proportion Confidence Interval to estimate the difference between two population proportions (based on two independent random samples) Hypothesis Test about the difference between two population proportions (based on two independent random samples) Confidence Interval to estimate one population mean Hypothesis Test about one population mean Confidence Interval to estimate a population mean difference Hypothesis Test about a population mean difference Confidence Interval to estimate the difference between two population means (based on two independent random samples) Hypothesis Test about the difference between two population means (based on two independent random samples) Saved

Explanation / Answer

8.a) Hypothesis testing about the difference between the two population proportions

8.b) Hypothesis testing about the difference between the two population mean

8.c) Hypothesis test about ne population proportion

8.d) Hypothesis testing about the difference between the two population mean

8e) Hypothesis testing about the difference between the two population mean

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