Question: In a psychological experiment, individuals are permitted to react to a stimulus in one of two ways, say, A or B. The experimenter wishes to

In a psychological experiment, individuals are permitted to react to a stimulus in one of two ways, say, A or B. The experimenter wishes to estimate the proportion p of persons exhibiting reaction A. How many persons should be included in the experiment to be 90% confident that the error of estimation is within .03 if the experimenter:
(a) Knows that p is about .3?
(b) Has no idea about the value of p?

Step by Step Solution

★★★★★

3.45 Rating (168 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a We have p 03 q 07 d 003 010 So z 2 z 005 1645 We ... 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)

880-M-S-L-R (7798).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

In a psychological experiment, the time on task was recorded for 10 subjects under a 5-minute time constraint. These measurements are in seconds: a. Find the average time on task. b. Find the median...

A psychological experiment was conducted to investigate the length of time (time delay) between the administration of a stimulus and the observation of a specified reaction. A random sample of 36...

A psychological experiment was performed to determine whether in problem-solving dyads containing one male and one female, "influencing" behavior depended on the sex of the experimenter. The problem...

You helped me a couple of weeks ago. I was wondering if i could setup a time for tomorrow that you could be available to help me with some questions. I will pay $20 per question. They are short and I...

think about what procedural changes would have the biggest positive impact, without being excessively costly for our lab members at every level (including undergrads!). Reference: the Lab Data Check...

Business Research MethodologyQuestion Bank 1 1. When the marketing department of an organization attempts to determine the amount of time the managers in this department spend at their computers in...

Business Research Methodology- Question Bank 1 1. When the marketing department of an organization attempts to determine the amount of time the managers in this department spend at their computers in...

10. An experimenter has some degree of control over the: a. independent variable. b. correlative variable. c. history effect. d. All of the above, if the experiment is conducted properly. 11. If a...

critique of statistical validity must address two main points, (1) effect size and (2) statistical significance. Effect Size: Whether/How do they report how large their effect was or how much...

From the book Networks, Crowds, and Markets: Reasoning about a Highly Connected World. By David Easley and Jon Kleinberg. Cambridge University Press, 2010. Complete preprint on-line at...

Assume that you are 35 years old, are married with two young children, are renting a condo, and have an annual income of $90,000. Use the following questions to guide your preparation of a rough...

The 2-D lattice below shows a set of diffraction lines over a series of 12 unit cells with axis a and b as shown: a) Derive the Miller index for the line running through the origin of the indicated...

Daniel M . specializes in buying high - risk commercial paper; his required return on these investments is 1 4 . 2 percent per year. He is considering buying some 6 0 - day paper from Blossom Corp....

5. Inventory information for product 248 is given below: Jan Mar. 17 Purchase 12 units @ Apr. 29 Purchase 8 units Aug 19 Purchase 12 units Aug. 29 Purchase 5 units Sept. 18 Purchase Balance 15 units...

Suppose that Ralph gets a strike when bowling 30% of the time. (a) What is the probability that Ralph gets two strikes in a row? (b) What is the probability that Ralph gets a turkey (three strikes in...

Among Americans who consider themselves auto racing fans, 59% identify NASCAR stock cars as their favorite type of racing. Suppose that four auto racing fans are randomly selected. Source: ESPN/TNS...

Among 21- to 25-year-olds, 29% say they have driven while under the inuence of alcohol. Suppose that three 21- to 25-year-olds are selected at random. (a) What is the probability that all three have...

Answer: 4,008 Please do not use a financial calculator Find the present value of $750 per year, at a discount rate of 10%, if the first payment is received 5 years from now and the last payment is...

28. The array declared with the statement Dim lakeAreas () As Integer = {23000, 8000, 22000, 10000, 32000} contains the surface areas (in square miles) of the five Great Lakes. Evaluate and interpret...

1 A veterinary study evaluates a new medication for mange in dogs. (Mange is a skin disease caused by a parasite.) 50 dogs participate in the study. Half the dogs are randomly assigned to get the new...