Excursions in Modern Mathematics (9th Edition)
9th Edition
ISBN: 9780134468372
Author: Peter Tannenbaum
Publisher: PEARSON
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Chapter 14, Problem 57E
To determine
a.
To compare:
The sampling frame and target population for this survey.
To determine
b.
To find:
The exact
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In each of the following examples, identify the sampling method being used and explain why.
1. A sociologist conducts an opinion survey in a major city. Part of the research plan calls
for describing and comparing the opinions of four different ethnic groups: African
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sample of 300, the researcher selects 75 participants from each of the four predetermined
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1.How many respondents should be chosen from Luzon?
A. 125
B. 150
C. 175
D. 200
2. What type of sampling technique is used in the situation above?
A. Cluster
B. Random
C. Stratified
D. Systematic
A geography student in Parkville, Missouri is conducting a housing survey, including questions about a proposed rent control initiative. She knows that about 38% of the people in Parkville live in apartments, and wants about 38% of the surveys given to apartment dwellers. What kind of sampling should she use?
Chapter 14 Solutions
Excursions in Modern Mathematics (9th Edition)
Ch. 14 - As part of a sixth-grade class project the teacher...Ch. 14 - As part of a sixth-grade class project the teacher...Ch. 14 - Madison County has a population of 34,522 people....Ch. 14 - Madison County has a population of 34,522 people....Ch. 14 - A big concert was held at the Bowl. Men and women...Ch. 14 - A large jar contains an unknown number of red...Ch. 14 - You want to estimate how many fish there are in a...Ch. 14 - To estimate the population in a rookery, 4965 fur...Ch. 14 - To count whale populations, the capture is done by...Ch. 14 - The critically endangered Mauis dolphin is...
Ch. 14 - Exercises 11 and 12 refer to Chapmans correction....Ch. 14 - Exercises 11 and 12 refer to Chapmans correction....Ch. 14 - Starting in 2004, a study to determine the number...Ch. 14 - Exercises 25 through 28 refer to the following...Ch. 14 - Name the sampling method that best describes each...Ch. 14 - An audit is performed on last years 15, 000...Ch. 14 - Exercise17 through 20 refer to the following...Ch. 14 - Exercise17 through 20 refer to the following...Ch. 14 - Exercise17 through 20 refer to the following...Ch. 14 - Exercise17 through 20 refer to the following...Ch. 14 - Prob. 21ECh. 14 - Prob. 22ECh. 14 - Prob. 23ECh. 14 - Prob. 24ECh. 14 - Exercises 25 through 28 refer to the following...Ch. 14 - Exercises 25 through 28 refer to the following...Ch. 14 - Exercises 25 through 28 refer to the following...Ch. 14 - Exercises 29 and 30 refer to the following story:...Ch. 14 - Exercises 29 and 30 refer to the following story:...Ch. 14 - Prob. 31ECh. 14 - Prob. 32ECh. 14 - Exercises 33 through 36 refer to the following...Ch. 14 - Exercises 33 through 36 refer to the following...Ch. 14 - Exercises 33 through 36 refer to the following...Ch. 14 - Exercises 33 through 36 refer to the following...Ch. 14 - Exercises 37 through 40 refer to a clinical study...Ch. 14 - Exercises 37 through 40 refer to a clinical study...Ch. 14 - Exercises 37 through 40 refer to a clinical study...Ch. 14 - Prob. 40ECh. 14 - Prob. 41ECh. 14 - Exercises 41 through 44 refer to a clinical trial...Ch. 14 - Prob. 43ECh. 14 - Exercises 41 through 44 refer to a clinical trial...Ch. 14 - Prob. 45ECh. 14 - Prob. 46ECh. 14 - Exercises 45 through 48 refer to a study on the...Ch. 14 - Prob. 48ECh. 14 - Exercises 49 through 52 refer to a landmark study...Ch. 14 - Prob. 50ECh. 14 - Exercises 49 through 52 refer to a landmark study...Ch. 14 - Prob. 52ECh. 14 - Exercises 53 through 56 refer to a study conducted...Ch. 14 - Prob. 54ECh. 14 - Exercises53_ through 56_ refer to a study...Ch. 14 - Exercises53 through 56 refer to a study conducted...Ch. 14 - Prob. 57ECh. 14 - Prob. 58ECh. 14 - Exercises 57 through 60 refer to the following...Ch. 14 - Prob. 60ECh. 14 - Prob. 61ECh. 14 - Prob. 62ECh. 14 - Prob. 63ECh. 14 - Prob. 64ECh. 14 - Read the examples of informal surveys given in...Ch. 14 - Leading-question bias. The way the questions in...Ch. 14 - Prob. 67ECh. 14 - Prob. 68ECh. 14 - Prob. 69ECh. 14 - Prob. 70ECh. 14 - Prob. 71ECh. 14 - Prob. 72ECh. 14 - One of the problems with the capture-recapture...Ch. 14 - Darrochs method. is a method for estimating the...
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- In the final sampling design, what is the type of sampling frame? A. List of food chains B. List of food chains in Mayor's Office C. List of streets D. List of food chain sizes In the final sampling design, what is the elementary unit? A. A food chain B. A street C. An food chain size classification D. the owner of the food chain In the initial sampling design, what is the sampling unit? A. A food chain B. A street C. An food chain size classification D. the owner of the food chain In the final sampling design, what is the sampling unit in the first stage? A. A food chain B. A street C. An food chain size classification D. the owner of the food chainarrow_forwardIf you were a researcher and wanted to conduct a research within your Barangay, what would it be? What sampling technique are you going to use?arrow_forwardSuppose that a poll was taken in order to assess the number of gypsy moth nests in Pennsylvania. 200 Pennsylvania trees were surveyed by Penn State researchers on the closest mountain to campus. Which of the following sampling plans was used in this survey? Group of answer choices stratified sample volunteer sample convenience sample systematic sample Suppose that a poll was taken in order to assess the number of gypsy moth nests in Pennsylvania. 200 Pennsylvania trees were surveyed by Penn State researchers on the closest mountain to campus. Which of the following types of bias could be attributed to the results? Group of answer choices non-response bias selection biasarrow_forward
- . Suppose that the second researcher conducted his survey by choosing 40 patients he knew. What sampling method would that researcher have used? What concerns would you have about this data set, based upon the data collection method?arrow_forwardFor each of the following scenarios, identify which sampling method is used (see textbook for names) A. The city population consists of four major ethnic groups that are not equally represented in the population. To ensure that the sample reflects these differences, the researcher first determines the number of residents in each ethnic group and then selects a sample so that the number for each group in the sample is in direct relation to the number in each group for the entire city population. B. The County Democratic Committee would like to determine which issues are most important to registered Democrats in the county. Starting with a list of registered Democrats, the committee uses a random process to select a sample of 30 names for telephone interviews. C. A medical research laboratory places ads in the local newspaper to recruit people with chronic migraine headaches to participate in clinical trials evaluating a new medication. Qualified individuals are asked to phone…arrow_forwardIn which one of the following sampling techniques, the samples are selected based on the proportion of the categories? a. Stratified sampling b. Cluster sampling c. Systematic sampling d. Random Samplingarrow_forward
- In a region divided into three districts, there are 227 Wi-Fi points. A new ITC operator decides to perform a survey on these three districts to evaluate the installation of additional hotspots. A sampling plan will be implemented to carry out the survey. Following is the table of the Wi-Fi points, together with the SD (miles) and their sampling cost.District Wi-Fi points SD * miles Sampling Cost 1 68 34 10 2 143 20 14 3 16 59 18Use the stratified sampling procedure to calculate the stratum sample size that minimizes costs.arrow_forwardIdentify the sampling technique used in the following situations: 1) A student collected arm lengths from her family members. 2) A new computer sales team separated a city by zip codes and then randomly selected 50 homes to question about their new software. 3) Every 5th driver was checked as to their sobriety at a check point by a local police department. 4) a real estate sales person divided an area by sale prices of homes and questioned them as to their interest in listing their house for sale.arrow_forwardSuppose that Fairfax County has N=400,000 households. Further, assume that for we have a complete list of these households that contains information for each household that includes estimated household income, household zip code, household address, high school related to the address. We want to collect information from either a sample of n=2000 or conduct a census of all 400,000 by using one of the techniques described below: A = Simple Random Sampling B = Stratified Sampling C = Cluster Sampling D = Systematic Sampling E = Census F = Experimental Design For each scenario below, determine which of the above techniques most closely resembles the data collection strategy being considered. For each scenario you can just designate the technique by using the appropriate letter from above. No further work need to be shown. Using household income, we sort the list from lowest to highest household income and label these sorted households as 1 to 400,000 on our list. We generate a…arrow_forward
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