QNT 561:
I want the Statistics question problems for chapter 3 and chapter 5 from the book "Statistical techniques in business and Economics" by Lind, Marchel and Wathen. Can somebody give the questions? Thanks.
A recent survey reported in BusinessWeek dealt with the salaries of CEOs at large corporations
and whether company shareholders made money or lost money.
CEO Paid More CEO Paid Less
Than $1 Million Than $1 Million Total
Shareholders made money 2 11 13
Shareholders lost money 4 3 7
Total 6 14 20
If a company is randomly selected from the list of 20 studied, what is the probability:
a. the CEO made more than $1 million?
b. the CEO made more than $1 million or the shareholders lost money?
c. the CEO made more than $1 million given the shareholders lost money?
d. of selecting 2 CEOs and finding they both made more than $1 million?
For each of the following rejection regions, sketch the sampling distribution for z and indicate the location of the rejection region, and determine the probability that a type 1 error will be made.
As an AI text-based model, I don't have access to specific textbooks or their content. However, I can provide you with general types of statistics questions that are commonly found in chapter 3 and chapter 5 of statistical textbooks. These questions typically cover topics such as probability, sampling, hypothesis testing, and regression analysis. Here are some examples:
Chapter 3:
1. A manufacturing company produces light bulbs. The probability of producing a defective bulb is 0.05. What is the probability of finding no defective bulbs in a random sample of 10 bulbs?
2. A survey of 500 homeowners found that 320 owned at least one car. What is the probability that a randomly selected homeowner owns at least one car?
3. A restaurant wants to estimate the average customer bill for the next month. They collect a simple random sample of 100 customer bills and find that the sample mean is $50 with a standard deviation of $10. Calculate the 95% confidence interval for the population mean.
Chapter 5:
1. Researchers want to determine if there is a significant difference in the average test scores between two groups of students. Group A has a sample mean of 75 with a standard deviation of 10, while Group B has a sample mean of 80 with a standard deviation of 12. Conduct a hypothesis test using a significance level of 0.05.
2. A sales manager wants to determine if there is a relationship between the number of cold calls made by a salesperson and the number of sales made. The manager collects data from 30 salespeople and their corresponding number of cold calls and sales. Perform a regression analysis to determine if there is a significant relationship.
Please note that these examples are general in nature and may not directly correspond to the specific questions in your textbook. It's best to refer to your textbook or consult with your instructor for the precise questions.
To obtain the statistics question problems for chapters 3 and 5 from the book "Statistical Techniques in Business and Economics" by Lind, Marchel, and Wathen, you have a few options:
1. Check the book: Start by looking directly in the book itself. Go to chapters 3 and 5 and see if there are any question problems at the end of each chapter. Many textbooks provide practice questions at the end of each chapter for students to test their understanding.
2. Online resources: Search for a solution manual or instructor's resources for this textbook. Sometimes, these resources contain additional questions, practice problems, or quizzes specifically for instructors and students. They can be found on various academic websites, online bookstores, or shared among students in online study groups or forums. Remember to adhere to copyright regulations and use these resources for educational purposes only.
3. Contact the publisher or author: Reach out to the publisher or author of the book and inquire about any available resources or study materials that may include additional questions or problem sets. They might be able to direct you to supplementary materials, online platforms, or companion websites that accompany the book.
4. Consult your instructor or classmates: Try speaking to your instructor or classmates who are using the same textbook. They may be aware of additional resources or have access to previous homework sets, class notes, or practice exams that cover the topics in chapters 3 and 5.
Remember that obtaining study materials from external sources like test banks or online solution manuals may not align with your academic institution's policies, so make sure to check the guidelines before using them. Always prioritize learning and understanding the concepts, rather than seeking solely to answer specific questions.