Assignment Instructions/ Description
Instructions
Use the table below each of your assigned problems to write out each step needed to solve the problem along with the calculations necessary to find the answer to your assigned problem. • The “Calculations” column needs to show each step that you would need to write out if you were showing your work when doing this problem by hand or trying to teach the concept to a friend. • For each step, you will also have to provide a thorough a description of your thought processes for the calculation in the “Explanations” column.• The first row (or step) should always be to copy the entire problem into the “Calculations” column or write out the important information. You can use copy and paste. • Make sure that your final answer is clearly stated.• You do not have to use all of the rows provided. However, if you need more rows to write out all of the steps you took to complete the problem, add rows.Week 5
W5.1
The government of a large city needs to determine whether the city’s residents will support the removal of the city’s university. The government decides to conduct a survey of a sample of the city’s residents. Which one of the following procedures would be the most appropriate for obtaining a sample of the city’s residents? Explain briefly why you chose your answer.
a. Survey a random sample of the students and employees of the university.b. Survey every fourth person that goes to the local night club.c. Survey the last 100 residents listed in the telephone directory.d. Survey a random sample of persons within each neighborhood.
Calculations Explanations1 Copy the problem or write out important information. 2 (Add rows as needed).
W5.2
A professor had students keep track of their social interactions for a week. The number of social interactions over the week is shown in the following grouped frequency distribution. How many students had at least 75 social interactions for the week?
Number of Social Interactions Frequency45-49 750-54 1655-59 1160-64 1765-69 1270-74 1175-79 580-84 885-89 090-94 3
Calculations Explanations1 Copy the problem or write out important information. 2 (Add rows as needed).
W5.3
For the following set of numbers, find the median.
43, 60, 56, 35, 40, 47
Calculations Explanations1 Copy the problem or write out important information. 2 (Add rows as needed).
W5.4
The stem-and-leaf plot shown compares the ages of actresses for 30 winners of the Oscar at the time they won the award. What is the age difference between the oldest and the youngest actress to win an Oscar?
Stems Actresses2 1466673 001133444557784 111295 36 0117 48 0
Calculations Explanations1 Copy the problem or write out important information. 2 (Add rows as needed).
W5.5
The city council wants to find out if its residents will support the building of a Cheesecake Kitchen restaurant. The council decides to conduct a survey of a sample of the city’s residents. Which procedure would be the most appropriate for obtaining a sample of the city’s residents? Provide a brief explanation for why you chose your answer.
a. Survey a random sample of customers in a chocolate specialty store who live in the city.b. Survey 100 people who live in oceanfront condominiums in the city.c. Randomly select neighborhoods of the city and then randomly survey people within the selected neighborhoods.d. Survey every 10th person who enters City Hall on a randomly selected day.
Calculations Explanations1 Copy the problem or write out important information. 2 (Add rows as needed).
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