B based on the data do the students have a legitimate

Info icon This preview shows pages 2–3. Sign up to view the full content.

View Full Document Right Arrow Icon
this machine. b. Based on the data do the students have a legitimate complaint about the machine not giving them enough coffee on average? c. If the students had taken a random sample of 100 cups (all other info staying the same) how would this affect the margin of error? d. What sample size is needed if the students wanted the margin of error to be at most .02 ounces per cup? 3. To estimate the number of visitors per month to the John F. Kennedy Library, the number of visitors was recorded for randomly selected months. Descriptive statistics on the sample data are shown below. Assume standard deviation for number of visitors stays at 35,000 people. Descriptive Statistics: Visitors Total Variable Count Mean Visitors 36 250926 a. Use the given information to estimate the average number of visitors to the JFK library. b. Using your answer to part a, what would be an unusually average for a given year? What would be an unusually low average number of visitors for a given year? Why? 2
Image of page 2

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
4. A group of randomly selected 50 sales representatives from a company had an average sales of $107.5 million this year. (Assume the standard deviation of sales is stable at $20.5 million.)
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern