BANA 2372 Test Questions with Correct Answers

BANA 2372 Test Que Umbrella corporation would like to survey its employees about the level of interest in flexible work schedules. Which of the following is the parameter of interest in this study? - Answer-Percentage of employees who are interested in flexible work schedules. The director of the online MBA program at a large business school surveys a sample of current students to determine their level of satisfaction with the program. She finds that 68% report being "very satisfied" with the online program. The value "68%" represents a - Answer-statistic Sweet N' Spicy, a restaurant and gift shop, has recently launched a sales campaign focused on the gift shop. To determine interest in the campaign, management plans to survey a random sample of their regular customers. Suppose that Sweet N' Spicy's regular customers belong to a rewards program and have a rewards ID number. Sweet N' Spicy decides to randomly select 100 numbers. This sampling plan is called - Answer-sample random sampling The Central Limit Theorem is the most important theorem (or "math fact") in statistics. It states that mean and standard deviation (or standard error) . - Answer-the sampling distribution of the sample mean; normal distribution; regardless of what the original population distribution looks like mean or sample proportion, when we consider taking repeated samples of a given size, n, from the same population or process and calculating that statistic each time. - Answer-population distribution In the U.S., it has been claimed that adults between the ages of 18 and 30 send an average of 45.4 text messages per day, with a standard deviation of 24.5. If a random sample of 104 adults in this age group were collected, what would be the mean of the sampling distribution of the sample mean, to one decimal place? Hint: This is primarily a question about one of the properties of the sampling distribution of the sample mean. Reread the theorems ("math facts") given in the PowerPoint slide and/or the Course Packet. - Answer- In the U.S., it has been claimed that adults between the ages of 18 and 30 send an average of 52.8 text messages per day, with a standard deviation of 24.2. If a random sample of 109 adults in this age group were collected, what would be the standard deviation of the sampling distribution of the sample mean, to one decimal place? Hint 1: This is primarily a question about one of the properties of the sampling distribution of the sample mean. Reread the theorems ("math facts") given in the PowerPoint slides and/or the Course Packet. Hint 2: Although the setup of this problem is similar to another problem in this assignment, the specific numbers will differ. - Answer- Suppose you imagine repeatedly taking random samples of size 100 from a population with a mean μ = 50 and a standard deviation σ = 20. Then the _ says that the _ has approximately a _ distribution with a mean equal to _ and a standard deviation equal to _. - Answer-Central limit theorem Sampling distribution of the sample mean Normal 50 2 stions with Correct Answers