Decision regarding the null hypothesis

Reference no: EM1319949

Shell Oil office workers were asked which work schedule appealed most: working five 8-hour days or four 10-hour days (USA Today, September 11, 2000). Let p equal the proportion of office workers preferring the four 10-hour day schedule. Test the hypotheses Ho: p=0.50 and Ha: p ≠ 0.50 at α = 0.01. A Sample of 105 office workers showed that 67 workers preferred the four 10-hour day schedule. What is your conclusion? Is a statistically significant preference indicated between the two schedules?

1. Establish the null hypothesis (H0) and the alternate hypothesis (Ha).

2. Indicate the level of significance, and determine critical, ZCR

3. Compute the test statistic and determine the P-value.

4. Formulate a decision rule based on steps a, b, and c above.

5. Make a decision regarding the null hypothesis based on the sample information. Interpret the results of the test and state your conclusion.

Reference no: EM1319949

Questions Cloud

What is the tangential speed of ball : An airplane is flying with a velocity of 95m/s at an angle of 19.0^circ above the horizontal. When the plane is a distance 124m straight above a dog that is standing on level ground, suitcase drops out of luggage compartment.

Compare the two forecasts by using mad : ompare the two forecasts by using MAD. Which forecast appears to be more accurate? .

What is the maximum reaction time of the motorist : A helicopter is ascending vertically with a speed of 4.50 m/s. At a height of 195 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground.

Compute the net force on each charge due to the other two : A projectile is fired horizontally from a gun that is 47.0 m above flat ground; emerging from the gun with a speed of 250 m/s.

Decision regarding the null hypothesis : Make a decision regarding the null hypothesis based on the sample information. Interpret the results of the test and state your conclusion.

Calculate approximately by what percentage directly : A hiker's trip consists of three segments. Path A is 9km long heading 60.0° north of east. Path B is 6.0km long in a direction due east. Path C is 5.0 km long heading 315° counter clockwise from east.

What is henry''s mass if his maximum apparent weight : A loudspeaker of mass 22 is suspended a distance of = 1.6 below the ceiling by two cables that make equal angles with the ceiling. Each cable has the length of = 3.10.

Use decision tree diagram to solve the problem : Use decision tree diagram to solve the problem.

What surface area in square meters should she cover : A moon orbits a planet because of the gravitational force between them. Similarly, each body also experiences a tidal force due to gravity. Consider how the magnitude of the tidal force changes as distance between a planet and moon varies.

User Account

All Pages