(a) A consultant wants to ask workers at a factory about the workers' job satisfaction. Which of the following best describes a random sample of workers? All of the workers on the second floor of the factory building are easily accessible. So, the consultant selects the first 64 workers from the second floor to arrive at work on a particular day. The consultant forms groups of 8 workers based on the lengths of time the workers have worked at the factory. Then, he randomly chooses 8 groups and selects all of the workers in these groups. The consultant assigns each worker a different number. Using a random number table, he draws 64 of those numbers at random. Then, the consultant selects the workers assigned to the drawn numbers. Every set of 64 workers is equally likely to be drawn using the random number table. (b) A host on a cruise ship wants to collect data on the time passengers spend at various activities on board. Which of the following best describes a stratified sample of passengers? The host forms 2 groups of passengers based on the levels of the ship that the passengers' cabins are on. Then, he selects 25 passengers at random from each group. The host assigns each passenger a different number. Using a random number table, he draws 50 of those numbers at random. Then, he selects the passengers assigned to the drawn numbers. Every set of 50 passengers is equally likely to be drawn using the random number table. The host forms groups of 10 passengers based on the passengers' ages. Then, he randomly chooses 5 groups and selects all of the passengers in these groups. (c) A manager at a bus company wants to survey employees about the new uniforms. Which of the following best describes a convenience sample of employees? The manager takes a list of the employees and selects every 5" employee until 90 employees are selected. The manager forms 5 groups of employees based on the departments the employees are in. Then, she selects 18 employees at random from each group. The manager asks for volunteers and selects every volunteer until 90 employees are selected. She selects the volunteers because these employees are easily accessible.

(a) A consultant wants to ask workers at a factory about the workers' job satisfaction. Which of the following best describes a random sample of workers? All of the workers on the second floor of the factory building are easily accessible. So, the consultant selects the first 64 workers from the second floor to arrive at work on a particular day. The consultant forms groups of 8 workers based on the lengths of time the workers have worked at the factory. Then, he randomly chooses 8 groups and selects all of the workers in these groups. The consultant assigns each worker a different number. Using a random number table, he draws 64 of those numbers at random. Then, the consultant selects the workers assigned to the drawn numbers. Every set of 64 workers is equally likely to be drawn using the random number table. (b) A host on a cruise ship wants to collect data on the time passengers spend at various activities on board. Which of the following best describes a stratified sample of passengers? The host forms 2 groups of passengers based on the levels of the ship that the passengers' cabins are on. Then, he selects 25 passengers at random from each group. The host assigns each passenger a different number. Using a random number table, he draws 50 of those numbers at random. Then, he selects the passengers assigned to the drawn numbers. Every set of 50 passengers is equally likely to be drawn using the random number table. The host forms groups of 10 passengers based on the passengers' ages. Then, he randomly chooses 5 groups and selects all of the passengers in these groups. (c) A manager at a bus company wants to survey employees about the new uniforms. Which of the following best describes a convenience sample of employees? The manager takes a list of the employees and selects every 5" employee until 90 employees are selected. The manager forms 5 groups of employees based on the departments the employees are in. Then, she selects 18 employees at random from each group. The manager asks for volunteers and selects every volunteer until 90 employees are selected. She selects the volunteers because these employees are easily accessible.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 10CYU

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