MyLab Math with Pearson eText -- Standalone Access Card -- for Excursions in Modern Mathematics (9th Edition)
9th Edition
ISBN: 9780134751818
Author: Peter Tannenbaum
Publisher: PEARSON
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Chapter 14, Problem 60E
To determine
a.
To find:
The total number of students at the university those were not familiar with the new financial aid program.
To determine
b.
To explain:
The results of the survey are reliable or not.
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In the final sampling design, what is the type of sampling in the first stage?
A. simple random sampling
B. stratified random sampling
C. cluster sampling
D. multistage sampling
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
The table below shows the number of students in each year level at Seido High School.
(see attached pic)
Emma does a survey to find out what type of TV programs people like to watch. She decides to interview 70 students from Seido High School.a. Use stratified sampling technique to decide how many students should be asked from each year level.b. If the samples shall only come from 3 of the year levels, what sampling technique will you use? Discuss.
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
Americans, Asian Americans, European Americans, and Native Americans. For a total
sample of 300, the researcher selects 75 participants from each of the four predetermined
subgroups.
2. A sample of 2,000 was sought to estimate the average achievement in science of fifth
graders in a city’s public schools. The average fifth grade enrolment in the city’s
elementary schools is 100 students. Thus, 20 schools were randomly selected and within
each of those schools all fifth graders were tes
Chapter 14 Solutions
MyLab Math with Pearson eText -- Standalone Access Card -- for 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 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_forwardIn 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_forwardA 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?arrow_forward
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- (b) Distinguish carefully between stratified sampling, cluster sampling and quota sampling, stating the benefits and drawbacks of each methodarrow_forwardDetermine the type of sampling used in the following scenario: A researcher has a list of names (in alphabetical order) of her respondents and selects every 5th name from the list to be included in her study. A. accidental sampling C. quota sampling B. cluster sampling D. purposive samplingarrow_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_forward
- 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 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_forwardIdentify the sampling technique used for the following study. A pollster interviews the first five members to arrive. Census Simple Random Sampling Stratified Sampling Cluster Sampling Systematic Sampling Convenience Samplingarrow_forwardA political scientist is interested in the effect of government type on economic development, She wants to use a sample of 30 countries evenly represented among the Americas, Europe, Asia, and Africa to conduct her analysis. What type of study should she use to ensure that countries are selected from each region of the world? a. Observational - simple random sampling b. Observational - cluster sampling c. Observational - stratified sampling d. Experimentalarrow_forward
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