To predict the outcome of an election, 2500 likely voters are randomly selected to take a survey. (a) Does the study appear to use random sampling? yes or no (b) Does the study appear to use random assignment? yes or no

You are conducting a statistical survey of library users.There are approximately 2500 people in the population (library patrons in a month),and you have a full list of their names,phone numbers,addresses,time &date of last visit,and any other reasonable information.if you want to create and survey a fair sample of 25 people,describe how you could do so using the following techniques.Be sure to include how you would contact your subjects. (a)Simple random sampling  (b)Systematic random sampling  (c)Stratified random sampl

A coach is interested in how many slam dunks the average college freshman at his university can do. Ten volunteers from the senior class step forward. After observing their performance, the coach concluded that college seniors can do an average of 10 slam dunks in a row without missing. what is the sample? what is the population?

Multiple Choice Question Identify the type of sampling used in the following scenario: To conduct a study on depression among the elderly, a sample of 30 patients in one nearby nursing home was used. A. Simple Random B. Voluntary Response C. Stratified  D. Convenience

Homework 7.2 1. Four students are randomly selected from an algebra class and asked whether they suffer from math anxiety. Find the sample space for the possible outcomes of the survey using a tree diagram.

Describe a method for getting a fair and unbiased simple random sample of 12 people if you have a group of 200 people to choose from.

A Statistics Canada researcher selects (at random) 10 apartments in one apartment building. The researcher then interviews all the residents in each of the 10 apartments selected. Which type of sampling did this researcher use?

A 2016 episode of the NPR program "This American Life" featured a radio show host from Tigerville South Carolina and focused on the divisions among evangelical Christians regarding their support of the then-presidential candidate Donald Trump. We know that these divisions still exist, and suppose you want to survey the people of Tigerville (population: 1.312) to see how many of them support Donald Trump today, and you want to use a simple random sample. (a) An SRS of 150 people is taken and it turns out that 55 support Trump. Estimate the proportion of people in Tigerville that support Trump and give a 95% confidence interval for the true proportion of Trump supporters using your estimate. (b) If 100 simple random samples are taken independently, and 100 such 95% confidence intervals are constructed, what is the probability that all 100 of these intervals will cover the true proportion? Does this number make sense to you? Explain.

Question 4 Coach Smith wants to know whether students would pay for the privilege of parking their cars in the lot closest to the school. He surveyed students getting on the buses while he monitored bus loading each afternoon. What type of sampling technique is this? Your answer: O Simple random sampling O Stratified random sampling O Systematic sampling Cluster sampling Convenience sampling O o o O O

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