What is a hypothesis test

Assignment Help Basic Statistics
Reference no: EM13993181

Question: Hypotheses

What is a hypothesis test? Why do we need to use them to make decisions about relating sample results to the population; why can't we just make our decisions by the sample value?

REFERENCE:

Tanner, D. E., & Youssef-Morgan, C. M. (2013). Statistics for managers

Chapter 3: Applying z to Groups

Chapter 4: t-Tests: Comparing Groups to Populations and Groups to Groups

Verified Expert

Provides a brief description of hypothesis test and its testing procedures. it also explains the null and alternate hypothesis and two types of errors incurred in hypothesis testing procedure

Reference no: EM13993181

Questions Cloud

Determining the mean and variance of the amount : If we assume that the three random variables involved are independent and uniformly distributed, compute the mean and variance of the amount to be received.
How could using a mean difference test help : When are differences between average or actual results important and how can you or your department decide whether or not the observed differences over time are important?
Determine the correlation coefficient : Let X and Y be random variables such that var (X) = 4, var ( Y) = 2, and var (X + 2Y) = 15. Determine the correlation coefficient of X and Y.
Why do you think this instruction is necessary : Why do you think this instruction is necessary? What does it tell you about the relationship between law and ethics?
What is a hypothesis test : What is a hypothesis test? Why do we need to use them to make decisions about relating sample results to the population; why can't we just make our decisions by the sample value?
Define and motivate the business problem : Discuss how the result of the data mining will be deployed and discuss any issues the firm should be aware of regarding deployment.
Problem regarding the distribution with positive variance : Let X1 ,X2 be a random sample of size 2 from a distribution with positive variance and m.g.f. M( t). If Y = X1 + Xi and Z X1 ·- X2 are independent, prove that the distribution from which the sample i..
Briefly discuss the three broad categories : Henry Mintzberg identified three broad categories of roles that managers play. Briefly discuss the three broad categories.
Estimate the size of that image : A fortune-teller looks into a silver-surfaced crystal ball with a radius of 10.0 cm and focal length of -5.0 cm. If her eye is 28 cm from the ball, where is the image of her eye? Determine the distance from the image to the surface of the ball. Expr..

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