Find the confidence interval of the true proportion

Assignment Help Basic Statistics
Reference no: EM13122876

A statistician wants to know the probability that a student will receive a GPA above 3.0. The statistician randomly selects 123 students from all four grade levels and finds that the probability of getting a 3.0 GPA is 43%. Using an alpha = .05, find the confidence interval of the true proportion of students to receive a 3.0 GPA. Please find the Z score, standard error, range, and your conclusion in a sentence.

Reference no: EM13122876

Questions Cloud

Find expected value for one ticket : One grand prize of $600 and two consolation prizes of $100 each will be awarded. Jeremy purchases one ticket. Find his expected value. Show your work for full credit.
Calculate the partial pressure of the hydrogen gas : Calculate the partial pressure of the hydrogen gas using the atmospheric pressure and the vapor pressure of water at the temperature of the solution. Assuming ideal gas behavior, calculate the number of moles of hydrogen gas evolved.
Explain how can you incorporate this type of analysis : Explain how can you incorporate this type of analysis and awareness into your professional work in a way that enhances your value to your organization? Which tools covered in this course might most readily translate into expanding your personal an..
Illustrate what kinds of checks and balances could you put : Illustrate what kinds of checks and balances could you put into place to insure ethical behavior and accountability for both yourself and your employees?
Find the confidence interval of the true proportion : Find the confidence interval of the true proportion of students to receive a 3.0 GPA. Find the Z score, standard error, range, and your conclusion in a sentence.
Question regarding linear cost function : An electrician charges a fee of $60 plus $45 per hour. Let C(x) be the cost in dollars of using the electrician for x hours. Find the linear cost function.
Determine the equilibrium concentration of h2s : Consider the following reaction: 2H2O + 2SO2 2H2 + 3O2 A reaction mixture initially contains 2.8M H2O and 2.6 M SO2.
Word paper analyzing in the role of modern romantic age : need 1050 word paper analyzing one aspect of the role of emotion in the Modern Romantic age. I must draw examples from at least three of the assigned literary works. As you discuss these works, you must show how their authors build on the authors who..
Contribution margin ratio : Gerber Company is planning to sell 200,000 units for $2.00 a unit and will just break even at this level of sales. The contribution margin ratio is 25%. What are the company's fixed expenses?

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!

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