Evaluate effect of treatment using hypothesis test

Assignment Help Basic Statistics
Reference no: EM13116790

A researcher administers a treatment to a sample of n = 25 participants and uses a hypothesis test to evaluate the effect of the treatment. The hypothesis test produces a z-score of z = 2.77. Assuming that the researcher is using a two-tailed test.

The researcher rejects the null hypothesis with a= .05 but not with a= .01.
The researcher should reject the null hypothesis with either a= .05 or a= .01.
The researcher should fail to reject H0 with either a= .05 or a= .01.
Cannot answer without additional information.

Reference no: EM13116790

Questions Cloud

Determine the upward force on an airplane wing : determine the upward force on an airplane's wing if the average flow speed of air is 192 m/s above the wing and 164 m/s below the wing. The density of the air is 1.5 kg/m3 and the area of each wing surface is 26 m2.
Return on foreign investment : An investor in the USA bought a one-year Singapore security valued at 200,000 Singapore dollars. The US dollar equivalent was $100,000. The Singapore security earned 15 percent during the year
Calculate the mole fraction of toluene : Toluene (C6H5CH3) is a liquid compound similar to benzene (C6H6). Calculate the mole fraction of toluene in the solution that contains 132 g toluene and 115 g benzene.
Explain how will the acceleration due to gravity : Explain how will the acceleration due to gravity at the surface of planet X compare to the acceleration due to gravity at the surface of earth?
Evaluate effect of treatment using hypothesis test : A researcher administers a treatment to a sample of n = 25 participants and uses a hypothesis test to evaluate the effect of the treatment.
What is propability that mary and dick child have freckles : Mary has freckles,but her husband Dick does not.Mary's father has freckles but her mother does not.what is the propability that Mary and Dick's child will have freckles?
Thoughts regarding corporate compensation : What are your thoughts regarding corporate compensation and the potential need for new regulations given the current state of the economy, corporate bankruptcies and bailout of institutions?
Illustrate what is the electric potential energy of system : Three equal point charges, each with charge 2.00, are placed at the vertices of an equilateral triangle whose sides are of length 0.650. Illustrate what is the electric potential energy of the system?
Which drug is more effective at improving exam scores : Two new chemicals have just been made by one of our colleagues in the medicinal chemistry area. The discoverer thinks that these chemicals will improve memory, so we test these drugs called A and B.

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