User Account

All Pages

How can reduce the width of the confidence interval

Assignment Help Basic Statistics
Reference no: EM131680017

Question: Dr. Garcia estimated the mean stress score before a statistics test for a random sample of 25 students. She found the mean and standard deviation for this sample to be 7.1 (on a scale of 1 to 10) and 1.2, respectively. She used a 97% confidence level. However, she thinks that the confidence interval is too wide. How can she reduce the width of the confidence interval? Describe all possible alternatives. Which alternative do you think is best and why?

Reference no: EM131680017

Questions Cloud

Identify the level or depth of the conflict : Summarize what is happening in the scenario. Identify who appears to have the power and ability to influence others' decisions or actions.
How large a sample should be taken in the given case : How large a sample should be taken in this case so that the margin of error is within .05 of the population proportion for a 90% confidence interval?
Determine the dollar amount of its cafeteria costs : Use this information to determine for Alpha Company the dollar amount of its Cafeteria costs that are to be absorbed by: The Printing Department
Mention two major and two minor minerals : In reference to minerals in the body, mention two major and two minor minerals. State their functions, sources and deficiency conditions. In 150-200 words
How can reduce the width of the confidence interval : How can she reduce the width of the confidence interval? Describe all possible alternatives. Which alternative do you think is best and why?
Select excellent food sources of vitamin c : To select excellent food sources of vitamin C that would meet your personal daily DRI for vitamin C. Based on your dietary analysis, it is highly
Compile and run source code on the c-compiler : Write a program that will display the given format. Compile and run your source code on the C-Compiler. Copy and paste your source code on a notepad.
What does bain mean by messy problems : "Deep learning" is a concept that runs through the Bain book. What is deep learning? What are the benefits to be realized from deep learning?
Estimate the mean number of hours : You want to estimate the mean number of hours that students at your college work per week. Briefly explain how you will conduct this study using a small sample.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd