Question: A researcher wants to test whether a certain sound will make rats do worse on learning tasks. It is known that ordinary rats can learn

A researcher wants to test whether a certain sound will make rats do worse on learning tasks. It is known that ordinary rats can learn to run a particular maze correctly in 18 trials, with a standard deviation of 6 (The number of trials to learn this maze is normally distributed). The researcher is experimenting with 18 rats in the maze, but with the sound. These rats take an average of 38 trials to learn the maze.
Using the .05 level, what should the researcher conclude? Solve this problem explicitly using all five steps of hypothesis testing, and illustrate your answer with a sketch showing the comparison distribution, the cutoff (or cutoffs), and the score of the sample on this distribution.

Step by Step Solution

★★★★★

3.41 Rating (170 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Hypotheses H0 mu1mu20 there is no difference in mean trials to run a maze fo... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

1019-B-M-A-P-C(3914).docx

120 KBs Word File

Students Have Also Explored These Related Managerial Accounting Questions!

A researcher wants to test the theory that low levels of oxygen in the mines is the single most important factor that tires the miners easily. a. What would be the nature of the study that would be...

A marketing researcher wants to test the hypothesis that, in the population, there is no difference in the importance attached to shopping by consumers living in the northern, southern, eastern, and...

A researcher wants to know if peoples concerns about the environment vary as a function of incentives provided for recycling. Students living on a university campus are recruited to participate in a...

A researcher wants to test whether a certain sound will make rats do worse on learning tasks. It is known that an ordinary rat can learn to run a particular maze correctly in 18 trials, with a...

17. A researcher wants to test whether a certain sound will make rats do worse on learning tasks (this is a fictional study). It is known that an ordinary rat can learn to run a particular maze...

16. A researcher wants to test whether a certain sound will make rats do worse on learning tasks. It is known that an ordinary rat can learn to run a particular maze correctly in 18 trials, with a...

A researcher wants to test achievement scores for home schooled 4 th graders.He knows that the population average for achievement scores of students who attend school is 250.He samples 110 home...

Answer the following True/False, Multiple Choice, Fill in blank as QUICKLY AS POSSIBLE*. Please let them be correct answers. No explanation needed. 1 When conducting a one-sample t test, if a sample...

This chapter presents students and early career executives with a sound understanding of theory. Theory is explored in terms of both anatomy (parts of the whole) and physiology (relationships with...

Providing Quality School-Based Learning and Support Services 239 Chapter 6 Language and literacy support Your core task The core task of almost all TAs is to support students language and literacy...

Various financial data of a company for 2020 are as follows. Output: Sales Inputs: Labor Raw Materials Energy $676,703 $75,000 $50,000 $15,000 Capital Employed $220,000 $3,000 Other What is the total...

The value of sin(1) can be computed using the series 1 1 sin(1) = 1 1 + 3! 5! 7! Find an upper bound on the approximation error when 5 terms of the series are used.

1. Visit the URL: http://www.infogoal.com/links.php? n = 12 and pursue the links there to study alternative software for project management. Choose three software packages from the list and visit...

5. Consider the following data for a demand curve: Price Quantity 11 10 10 20 9 30 8 40 7 50 6 60 5 70 4 80 3 90 a. Use the midpoint formula to calculate the elasticity between a price of $10 and...

In Figure, a square of edge length 20.0 cm is formed by four spheres of masses m1 = 5.00 g, m2 = 3.00 g, m3 = 1.00 g, and m4 = 5.00 g. In unit-vector notation, what is the net gravitational force...

Miniature black holes left over from the big-bang beginning of the universe, tiny black holes might still wander through the universe. If one with a mass of 1 x 1011 kg (and radius of only 1 x 10-16...

In Figure particle A is fixed in place at x = 0.20 m on the x axis and particle B, with a mass of 1.0 kg, is fixed in place at the origin. Particle C (not shown) can be moved along the x axis,...

On the graduate record exam in economics, scores are normally distributed with a mean of 615 and a standard deviation of 107. If a college admissions office decides to require scores above the 70 th...

Lottery games are very popular, but what are the actual probabilities that a ticket purchased is going to win? Calculate the probability of winning some of the more popular games. A game that draws 3...

Consider a Black-Scholes model with r = 6%, sigma = 0.25, S(0) = 50 and delta = 0. Suppose you sold ten (10) 90-day Puts with strike K = 50 (at price C_1(0) determined by the Black-Scholes formula)....