Difference between left-tailed-two-tailed and right-tailed

Assignment Help Basic Statistics
Reference no: EM13110976

1. Explain the difference between a left-tailed, two-tailed, and right-tailed test. When would we choose a two-tailed test? How can we tell the direction of the test by looking at a pair of hypothesis? How can we tell which direction (or no direction) to make the hypothesis by looking at the problem statement (research question)?

2. Explain the difference between the null hypothesis and the alternate hypothesis. How is the null hypothesis chosen (why is it null)? What is the importance of rejecting the null hypothesis in relation of the sample to the population? With a failure to reject the null hypothesis, can we make a general statement about the population based on the sample findings?

Reference no: EM13110976

Questions Cloud

Discuss the importance of baseline : What is the difference between a task dependency and a task constraint? What is the importance of a baseline.
Describe the major factors that influence energy requirement : Describe and explain the relationship among the processes of filtration, reabsorption, and secretion in the mammalian kidney.
Deliberate how leaders identify and formulate effective : Deliberate how leaders identify and formulate effective change to address stakeholder expectations. Examine how organizations need to improve with respect to employee and customer responsiveness to meet objectives
What causes the phenotype to develop : Phenylketonuria is a recessive metabolic disease caused by the absence of the enzyme phenylalanine hydroxylase. What is the phenotype of the disease, and what causes the phenotype to develop?
Difference between left-tailed-two-tailed and right-tailed : Explain the difference between a left-tailed, two-tailed, and right-tailed test. When would we choose a two-tailed test? How can we tell the direction of the test by looking at a pair of hypothesis?
Determine the expected grade and variance : The following probabilities for grades in management science have been determined based on the past records:
Explain quality steel corporation files a suit against rite : Quality Steel Corporation files a suit against Rite Tool Company requesting that the consideration for their contract is inadequate
How much co2 is produced : A 100 ml culture bottle is filled with LB (Lysogeny broth) which has all the nutrients and plenty of oxygen to support of oxygen to support E. coli growth. By performing serial dilutions and plate count you estimated that there are 5x10^5 cells pe..
Illustrate that xt is white noise sequence : Let et~IID N(0,1) and state Xt=etet-1. Illustrate that {Xt} is white noise sequence. Calculate the mean of Xt. Calculate the variance of Xt.

Reviews

Write a Review

 

Basic Statistics Questions & Answers

  Five step hypothesis test for bellevue steel

The production manager at Bellevue Steel, a manufacturer of wheelchairs, wants to perform a second analysis of the number of defective wheelchairs produced on the day shift and afternoon shift.

  Analysis of anova

ANOVA is a powerful statistical test. How does ANOVA differ from other parametric tests? What are the conditions that must be met to use a one-way ANOVA?

  Caffeine consumption-activity level for school children

Two researchers are both interested in the relationship between caffeine consumption and activity level for elementary school children. Each obtains a sample of n = 20 children.

  Information about statistics-linear programming

Biggio's Department Store has six employees available to assign to four departments in the store: home furnishings, china, appliances, and jewelry.

  A normal population has a mean of 80.0

Calculate the probability of a value between 75.0 and 90.Calculate the probability of a value of 75.0 and less.

  Finding the value of correlation and regression equation

Determine and record how much of the math grade can be explained by the PE grade? How much of the Writing grade can be explained by the Reading grade?

  Explain how sample size affect outcome of hypothesis test

Briefly explain how sample size affect outcome of hypothesis test. How does sample size affect measures of effect size?

  Central tendency and measure of varibility

Discuss what is meant by mean, median, mode, variance, and standard deviation for a set of scores. Also mention under what circumstance you would use each of these.

  Ninety nine percent confidence interval for mean

What is the 99% confidence interval?

  Average commuting time for citizens

The Bureau of the Census reports that the average commuting time for citizens of both Baltimore, Maryland, and Miami, Florida is approximately 29 minutes (uMiami=29 and uBaltimore=29 minutes).

  Estimating quality assurance and binomial distribution

John Rengel is the Quality Assurance Supervisor for Vino Supremo Vinyards. He knows that 10 percent of each box of corks is undersized.

  Compute the test statistic value of tukey''s criterion

In a one-way ANOVA analysis of 3 treatments, with the total number of 9 observations, with an equal number of observations in each treatment, mean-square-error (MSE) was found to be 24.905.

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