Exam 10: Sample Surveys

Molly's Reach, a regional restaurant and gift shop, has recently launched an increased sales campaign, particularly focused on their gift shop.To determine if their proposal is of interest, They plan to survey a random sample of their regular customers.Which of the following is The parameter of interest in the Molly's Reach study?

The main ideas of sampling do not include

Molly's Reach, a regional restaurant and gift shop, has recently launched an increased sales campaign, particularly focused on their gift shop.To determine if their proposal is of interest, They plan to survey a random sample of their regular customers.Suppose that Molly's Reach Has an alphabetized list of regular customers who belong to their rewards program.After Randomly selecting a customer on the list, every 25th customer from that point on is chosen To be in the sample.This sampling plan is called

Molly's Reach, a regional restaurant and gift shop, has recently launched an increased sales campaign, particularly focused on their gift shop.To determine if their proposal is of interest, They plan to survey a random sample of their regular customers.One member of the Management team at Molly's Reach suggests that their survey could be conducted online. Customers logging on to the online store would be asked to take a few minutes to complete The survey and would be offered a coupon as incentive to participate.Which of the following Statements is true?

The online MBA director at a large business school surveys a sample of current students to determine their level of satisfaction with the program.She finds that 67% are "very satisfied" With the online program.This is a

A school district administrator sent a survey to all teachers in the district.Only 30% of the teachers responded to the survey.Which of the following is true? I.The people that did not responded are likely to be similar to those that did so he should Use them as the sample. II.This survey design suffered from non-response bias. III.Because he sent the survey to everyone, this is a census and the results can be applied to The whole population.

The administration of a large university is interested in learning about the types of wellness programs that would interest its employees.Suppose that the university randomly selects a School (e.g., the Business School) and surveys all of the individuals (administration, faculty, Professional staff, clerical and maintenance) who work in that school.This sampling plan is Called

Molly's Reach, a regional restaurant and gift shop, has recently launched an increased sales campaign, particularly focused on their gift shop.To determine if their proposal is of interest, They plan to survey a random sample of their regular customers.All regular Molly's Reach Customers is known as the ________ of the study.

Molly's Reach, a regional restaurant and gift shop, has recently launched an increased sales campaign, particularly focused on their gift shop.To determine if their proposal is of interest, They plan to survey a random sample of their regular customers.Suppose that Molly's Reach's regular customers belong to a rewards program and have a customer rewards ID Number.Molly's Reach decides to randomly select 100 numbers.This sampling plan is Called

Which of the following survey questions is leading?

Among a dozen eggs, three are rotten. A cookie recipe calls for two eggs; they'll be selected randomly from that dozen. Which plan could be used to simulate the number of rotten eggs that might be chosen? I. Let 0,1 , and 2 represent the rotten eggs, and $3,4 , \ldots , 11$ the good eggs. Generate two random numbers $0 - 11$ , ignoring repeats. II. Randomly generate a 0,1 , or 2 to represent the number of rotten eggs you get. III. Since $25 \%$ of the eggs are rotten, let $0 =$ rotten and $1,2,3 =$ good. Generate two random numbers $0 - 3$ and see how may 0 's you get.

A consumer research group is interested in how older drivers view hybrid cars.Specifically, they wish to assess the percentage of drivers in the U.S.50 years of age or older who intend To purchase a hybrid in the next two years.They selected a systematic sample from a list of AARP (American Association of Retired Persons) members.Based on this sample, they Estimated the percentage to be 17%.Which of the following statements about this study is True?

A consumer research group is interested in how older drivers view hybrid cars.Specifically, they wish to assess the percentage of drivers in the U.S.50 years of age or older who intend To purchase a hybrid in the next two years.They selected a systematic sample from a list of AARP (American Association of Retired Persons) members.Based on this sample, they Estimated the percentage to be 17%.The sampling frame for this study is

The principal of a small elementary school wants to select a simple random sample of 24 students.The school has 12 classrooms with 18 students in each class.She decides to Randomly select two students from each classroom.Is this a simple random sample?

Hoping to get information that would allow them to negotiate new rates with their advertisers, Natural Health magazine phoned a random sample of 600 subscribers.64% of Those polled said they use nutritional supplements.Which is true? I.The population of interest is the people who read this magazine. II."64%" is not a statistic; it's the parameter of interest. III.This sampling design should provide the company with a reasonably accurate estimate of The percentage of all subscribers who use supplements.

Shortly after the Sandy Hook Elementary School shooting in December 2012, a local television news program asked viewers to call in with their opinion about gun control.These Results were likely biased because

A basketball player has a $70 \%$ free throw percentage. Which plan could be used to simulate the number of free throws she will make in her next five free throw attempts? I. Let 0,1 represent making the first shot, 2,3 represent making the second shot, $. , 8,9$ represent making the fifth shot. Generate five random numbers $0 - 9$ , ignoring repeats. II. Let $0,1,2$ represent missing a shot and $3,4 , \ldots , 9$ represent making a shot. Generate five random numbers $0 - 9$ and count how many numbers are in 3-9. III. Let $0,1,2$ represent missing a shot and $3,4 , \ldots , 9$ represent making a shot. Generate five random numbers $0 - 9$ and count how many numbers are in $3 - 9$ , ignoring repeats.

Which of these is not an advantage of using a stratified sample instead of a simple random sample?

The administration of a large university is interested in learning about the types of wellness programs that would interest its employees.Suppose that there are five categories of Employees (administration, faculty, professional staff, clerical and maintenance) and the University decides to randomly select ten individuals from each category.This sampling plan Is called