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(a) A bank analyst wants to ask customers who have a mortgage with the bank about the customers' home-buying experiences. Which of the following best describes a systematic sample of customers? O The analyst takes a list of the customers and selects every 5th customer until 50 customers are selected. O The analyst spends a day' calling mortgage customers and selects the first 50 customers who answer because these customers are easily accessible. O The analyst forms groups of 10 customers based on the cities the customers live in. Then, she selects all of the customers in 5 randomly chosen groups. (b) Counselors at a college want to poll students about how much time the students spend studying. Which of the following best describes a random sample of students? The students living in a particular dorm building on campus are easily accessible. So, the counselors select the 72 students living in that particular dorm building. The counselors take a list of the students and select every 3rd student until 72 students are selected. O The counselors use a computer program to draw 72 students at random and select these students. Every set of 72 students is equally likely to be drawn by the computer program. (c) The organizers of a conference want to survey attendees about the registration fee. Which of the following best describes a cluster sample of attendees? O The organizers form 4 groups of attendees based on the attendees' employment statuses. Then, the organizers select 16 attendees at random from each group. The organizers form groups of 8 attendees based on the day the attendees registered. Then, the organizers randomly choose 8 groups and select all of the attendees in these aroups.

(a) A bank analyst wants to ask customers who have a mortgage with the bank about the customers' home-buying experiences. Which of the following best describes a systematic sample of customers? O The analyst takes a list of the customers and selects every 5th customer until 50 customers are selected. O The analyst spends a day' calling mortgage customers and selects the first 50 customers who answer because these customers are easily accessible. O The analyst forms groups of 10 customers based on the cities the customers live in. Then, she selects all of the customers in 5 randomly chosen groups. (b) Counselors at a college want to poll students about how much time the students spend studying. Which of the following best describes a random sample of students? The students living in a particular dorm building on campus are easily accessible. So, the counselors select the 72 students living in that particular dorm building. The counselors take a list of the students and select every 3rd student until 72 students are selected. O The counselors use a computer program to draw 72 students at random and select these students. Every set of 72 students is equally likely to be drawn by the computer program. (c) The organizers of a conference want to survey attendees about the registration fee. Which of the following best describes a cluster sample of attendees? O The organizers form 4 groups of attendees based on the attendees' employment statuses. Then, the organizers select 16 attendees at random from each group. The organizers form groups of 8 attendees based on the day the attendees registered. Then, the organizers randomly choose 8 groups and select all of the attendees in these aroups.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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(a) A bank analyst wants to ask customers who have a mortgage with the bank about the customers' home-buying experiences. Which of the following best describes a systematic sample of customers? The analyst takes a list of the customers and selects every 5th customer until 50 customers are selected. The analyst spends a day calling mortgage customers and selects the first 50 customers who answer because these customers are easily accessible. The analyst forms groups of 10 customers based on the cities the customers live in. Then, she selects all of the customers in 5 randomly chosen groups. (b) Counselors at a college want to poll students about how much time the students spend studying. Which of the following best describes a random sample of students? The students living in a particular dorm building on campus are easily accessible. So, the counselors select the 72 students living in that particular dorm building. The counselors take a list of the students and select every 3rd student until 72 students are selected. The counselors use a computer program to draw 72 students at random and select these students. Every set of 72 students is equally likely to be drawn by the computer program. (c) The organizers of a conference want to survey attendees about the registration fee. Which of the following best describes a cluster sample of attendees? O The organizers form 4 groups of attendees based on the attendees' employment statuses. Then, the organizers select 16 attendees at random from each group. The organizers form groups of 8 attendees based on the day the attendees registered. Then, the organizers randomly choose 8 groups and select all of the attendees in these aroups.
Transcribed Image Text:(a) A bank analyst wants to ask customers who have a mortgage with the bank about the customers' home-buying experiences. Which of the following best describes a systematic sample of customers? The analyst takes a list of the customers and selects every 5th customer until 50 customers are selected. The analyst spends a day calling mortgage customers and selects the first 50 customers who answer because these customers are easily accessible. The analyst forms groups of 10 customers based on the cities the customers live in. Then, she selects all of the customers in 5 randomly chosen groups. (b) Counselors at a college want to poll students about how much time the students spend studying. Which of the following best describes a random sample of students? The students living in a particular dorm building on campus are easily accessible. So, the counselors select the 72 students living in that particular dorm building. The counselors take a list of the students and select every 3rd student until 72 students are selected. The counselors use a computer program to draw 72 students at random and select these students. Every set of 72 students is equally likely to be drawn by the computer program. (c) The organizers of a conference want to survey attendees about the registration fee. Which of the following best describes a cluster sample of attendees? O The organizers form 4 groups of attendees based on the attendees' employment statuses. Then, the organizers select 16 attendees at random from each group. The organizers form groups of 8 attendees based on the day the attendees registered. Then, the organizers randomly choose 8 groups and select all of the attendees in these aroups.
(b) Counselors at a college want to poll students about how much time the students spend studying. Which of the following best describes a random sample of students? O The students living in a particular dorm building on campus are easily accessible. So, the counselors select the 72 students living in that particular dorm building. The counselors take a list of the students and select every 3rd student until 72 students are selected. The counselors use a computer program to draw 72 students at random and select these students. Every set of 72 students is equally likely to be drawn by the computer program. (c) The organizers of a conference want to survey attendees about the registration fee. Which of the following best describes a cluster sample of attendees? The organizers form 4 groups of attendees based on the attendees' employment statuses. Then, the organizers select 16 attendees at random from each group. The organizers form groups of 8 attendees based on the day the attendees registered. Then, the organizers randomly choose 8 groups and select all of the attendees in these groups. The organizers assign each attendee a different number. Using a random number table, the organizers draw 64 of those numbers at random. Then, the organizers select the attendees assigned to the drawn numbers. Every set of 64 attendees is equally likely to be drawn using the random number table.
Transcribed Image Text:(b) Counselors at a college want to poll students about how much time the students spend studying. Which of the following best describes a random sample of students? O The students living in a particular dorm building on campus are easily accessible. So, the counselors select the 72 students living in that particular dorm building. The counselors take a list of the students and select every 3rd student until 72 students are selected. The counselors use a computer program to draw 72 students at random and select these students. Every set of 72 students is equally likely to be drawn by the computer program. (c) The organizers of a conference want to survey attendees about the registration fee. Which of the following best describes a cluster sample of attendees? The organizers form 4 groups of attendees based on the attendees' employment statuses. Then, the organizers select 16 attendees at random from each group. The organizers form groups of 8 attendees based on the day the attendees registered. Then, the organizers randomly choose 8 groups and select all of the attendees in these groups. The organizers assign each attendee a different number. Using a random number table, the organizers draw 64 of those numbers at random. Then, the organizers select the attendees assigned to the drawn numbers. Every set of 64 attendees is equally likely to be drawn using the random number table.
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