User Account

All Pages

Distinguish between a one-tailed test and two-tailed test

Assignment Help Basic Statistics
Reference no: EM131672858

Question: Distinguish between a one-tailed test and two-tailed test, and explain why a Type III error is possible only with one-tailed tests.

• Nondirectional (two-tailed) tests are hypothesis tests in which the alternative hypothesis is stated as not equal to (:t!=) a value stated in the null hypothesis. So we are interested in any alternative to the null hypothesis.

• Directional (one-tailed) tests are hypothesis tests in which the alternative hypothesis is stated as greater than(>) or less than(would have been significant in one tail, but the researcher retains the null hypothesis because the rejection region was placed in the wrong or opposite tail.

Reference no: EM131672858

Questions Cloud

Defien level of significance and test statistic : Define null hypothesis, alternative hypothesis, level of significance, test statistic, p value, and statistical significance.
Explain how you would modify your approach in the future : Explain How you would modify your approach in the future. Description of one of the fundamental states of leadership.
Identify the type of error that researchers control : We can decide to retain or reject a null hypothesis, and this decision can be correct or incorrect. Two types of errors in hypothesis testing are called Type I.
What are the differences between the various layout choices : What are the differences between the various layout choices (i.e. product, process, fixed position layout)? Why is it important to have a good product design?
Distinguish between a one-tailed test and two-tailed test : Distinguish between a one-tailed test and two-tailed test, and explain why a Type III error is possible only with one-tailed tests.
What do you believe is the place of humanistic psychology : What were the most significant theoretical understandings of the human condition identified by the humanistic movement of psychology in the United States?
Aspects created by implementation of technology : Explain the impact of information technology on organizations and how to manage various aspects created by implementation of technology.
Define power and identify six factors that influence power : In hypothesis testing, power is the probability that a sample selected at random will show that the null hypothe
Steps will work and offer suggestions for improvement : Discuss with other students whether or not their steps will work and offer suggestions for improvement.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Details abouttesting of hypothesis

Calculate a four-quarter weighted moving average for the number of America Online (AOL) subscribers for the nine quarters of data. The data are reported in thousands.

  Discussion on standard deviation and standard error

Why is it important to know the standard deviation for a given sample? What do researchers learn about a normal distribution from knowledge of the standard deviation?

  Problem regarding the respective expectation

A and B throw with one die for a prize of Rs199 which is to be won by the player who first throws 6. If A has the first throw their respective expectation are

  What is mean of this sampling distribution

In large population of college educated adults the man IQ score is 115 with a standard deviation of 15. Suppose 15 adults from this population are randomly slected for a survey of fear of crime.

  Probabilities-z scores and distributions

Two hundred raffle tickets are sold. Your friend has 5 people in her family who each bought two raffle tickets. What is the probability that someone from her family will win the raffle?

  Probability that sample mean would exceed time limit

The statistics showed that students studied an average of 20 hours per week with a standard deviation of 10 hours. What is the probability that a sample mean would exceed 20 hours per week?

  Find the sample size required

Find the sample size required for two-sided nonparametric statistical tolerance limits for the viscosity of a grease used as a lubricant.

  Making scatter diagram and explain

Four research participants take a test of mannual dexterity (high scores mean better dexterity) and anxiety test (high scores mean more anxiety). Scores are as follows:

  Salaries of male and female professors

Assume that the salaries of male and female professors are both normally distributed with equal standard deviations.

  You about the type of people who use unix

One way to logout is to press ^D (which sends the eof signal) at the shell prompt. Since you might do this by accident, you can tell the shell to ignore the eof signal. Why is this not the default? What does this tell you about the type of people who..

  Compute the z statistic and p-value

Combining all of the games played, what proportion did the Yankees win? Compute the z statistic and its P-value. What conclusion do you draw?

  Estimate the effect of price on sales using dataset

1. Suppose we want to estimate the effect of price on sales using this dataset.

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