Determine the appropriate interval-hypotheses , Macroeconomics

1. Practice identification of proper analysis type (1-Sample Z, 1-Sample t, 2-Sample t, Paired t, etc).

2. Practice hypothesis testing.

3. Practice interpretation of statistical information.

Problem: The design of controls and instruments has a large effect on how easily people can use them. A student project investigated this effect by asking 25 right-handed students to turn a knob (with their right hands) that moved an indicator by screw action. There were two identical instruments, one with a right-hand thread (the knob turns clockwise) and the other with a left-hand thread (the knob turns counterclockwise). The times required (in seconds) were carefully recorded and are provided in the Excel file titled "Assignment #2 - Part III - Times."

Requirements: Again, use StatTools to generate as much of the statistical information needed as possible.

1. Each of the 25 students used both instruments. Discuss briefly how the experiment should be arranged and how randomization should be used.

2. The project hoped to show that right-handed people find right-hand threads easier to use. State the appropriate null and alternative hypotheses about the mean time required to complete the task.

3. Carry out a test of your hypotheses using a significance level of 0.05. Give the P-value and report your conclusion.

4. Determine the appropriate 95% confidence interval that could be used to test the hypotheses. Interpret the result.

Posted Date: 3/8/2013 6:04:58 AM | Location : United States







Related Discussions:- Determine the appropriate interval-hypotheses , Assignment Help, Ask Question on Determine the appropriate interval-hypotheses , Get Answer, Expert's Help, Determine the appropriate interval-hypotheses Discussions

Write discussion on Determine the appropriate interval-hypotheses
Your posts are moderated
Related Questions
Analyze the relationship between the production possibilities curve and the circular flow diagram. Discuss how the change of production possibilities curve affects the circular flo

Consider the following model of an economy that begins in a macro equilibrium,

One alternative way to calculate the total change in money supply when the Fed injects money into the economy or takes away money from the economy is the amount of money injected o


Suppose there are two investors. One has a project to build a factory; the other has a project to visit casino and gamble on roulette. Which investor has a greater incentive to iss

In a Poisson distribution U=4. A) What is the probability that X=2? B) What is the probability that X is 2?

Ask question #MinDerive the isoprofit function ?imum 100 words accepted#

The U.K. produces and imports eggs. Suppose that the government imposed a quota on imports: Foreign suppliers could export no more than Q eggs (regardless of price). What effect do

Determine Velocity Approach to Money Demand. The Velocity Approach to Money Demand: The velocity of money: V = (P × Y)/ M The real quantity of money demanded is pr