(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? O The consultant forms groups of 8 workers based on the lengths of time the workers have worked at the factory. Then, he randomly chooses 7 groups and selects all of the workers in these groups. O All of the workers on the second floor of the factory building are easily accessible. So, the consultant selects the first 56 workers from the second floor to arrive at work on a particular day. O The consultant assigns each worker a different number. Using a random number table, he draws 56 of those numbers at random. Then, the consultant Aa selects the workers assigned to the drawn numbers. Every set of 56 workers is equally likely to be drawn using the random number table. (b) A facilities supervisor at a sports stadium wants to rate the condition of the seats at the stadium. Which of the following best describes a stratified sample of seats? O The supervisor forms groups of 20 seats based on the sections the seats are in. Then, she selects all of the seats in 4 randomly chosen groups. O The supervisor uses a computer program to draw 80 seats at random and selects these seats. Every set of 80 seats is equally likely to be drawn by the computer program. O The supervisor forms 4 groups of seats based on the dates the seats were last replaced. Then, she selects 20 seats at random from each group. (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? O The manager asks for volunteers and selects every volunteer until 64 employees are selected. She selects the volunteers because these employees are easily accessible. th O The manager takes a list of the employees and selects every 4 employee until 64 employees are selected. O The manager forms 4 groups of employees based on the departments the employees are in. Then, she selects 16 employees at random from each group. Activate Windews Go to Settings to actira Explanation Check O 2020 McGraw-Hill Education. All Rights Reserved. Terms of Use | Privacy Accessibility P Type here to search hp ooil f8 f9 f10 12