{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

HW9 - Stat 4714 HW 9 Due Friday October 29 at 1:15pm 1 The...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Stat 4714 HW 9 - Due Friday October 29 at 1:15pm 1. The goal of this problem is to have you simulate data from a non-normal distribution and construct a distribution for the sample mean. [TURN IN LIST OF MEANS AND HISTOGRAMS. DO NOT INCLUDE THE SIMULATED DATA] a. Using JMP, simulate 20 random samples of data of size 10 from an exponential distribution with mean 1.5. b. List the 20 sample means from your data. c. Create a histogram of the means. d. Does this distribution of sample means look like it follows a normal distribution? e. Increase the sample size of the 20 samples to 45. Repeat steps b & c using the newly simulated data. Does this distribution of sample means look like it follows a normal distribution? 2. When constructing a confidence interval for a population mean with a known population variance, a. what value of z would we use for a 93% confidence interval? b. what value of z would we use for a 80% confidence interval? c. what value of z would we use for a 85% confidence interval? 3. Find the method of moments estimator for p for the geometric distribution. 4. Find the maximum likelihood estimator for p for the geometric distribution. Note: You may need to use some of the rules for products and logs on the next page. 5. From a random sample of 35 observations, we have obtained a sample mean of 18.5. The population standard deviation is 10. We wish to construct a confidence interval for the mean, but we think our margin of error is too large.
Image of page 1

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

View Full Document Right Arrow Icon
Image of page 2
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