The national academy of science reported in a 1997 study

Assignment Help Basic Statistics

Reference no: EM13635499

Perform hypothesis tests. Please label the test statistic you found (t value, z value, or Chi square) and the value. For the conclusion please state fail to reject or reject thenull hypothesis.

The national Academy of science reported in a 1997 study that 40% of research in mathematics is published by U.S.authors. The mathematics chairperson of a prestigious university wishes to test the claim that this percentage is no longer 40%. He has no indication of whether the percentage has increased or decreased. He surveys a simple random sample of 130 recent articles published by reputable mathematics journals and finds that 62 of these articles have U.S. authors. At the 0.10 level, does this evidence support the chairperson's claim that the percentage is no longer 40%?

Hypotheses:

Test Statistic and value

P-Value

Conclusion

Reference no: EM13635499

Questions Cloud

A particle beam is made up of many protons each with a : a particle beam is made up of many protons each with a kinetic energy of 3.25times10-15j. a proton has a mass of

Dtermine the final temperature of a gold nugget mass : determine the final temperature of a gold nugget mass 376g that starts at 398 k and looses 4.85 kj of heat to a

A rocketship of proper length d travels at constant : a rocketship of proper length d travels at constant velocity v relative to a frame s. the nose of the ship a passes the

Determine the corresponding specific stagnation enthalpy in : steam flows through a passageway and at a particular location the pressure is 3 bar the temperature is 281.48c and the

The national academy of science reported in a 1997 study : perform hypothesis tests. please label the test statistic you found t value z value or chi square and the value. for

A at what horizontal distance from the beetle should the : the archerfish hunts by dislodging an unsuspecting insect from its resting place with a stream of water expelled from

The turbine is located 75 m below the water surface if the : a river running at 500 m3s is collected in a reservoir behind a dam. the turbine is located 75 m below the water

A student weighs 02254g of sodium chloride for : a student weighs 0.2254g of sodium chloride for chloridedetermination. calculate the millimoles of silver nitrate

What are a the speed and b the direction of motion as a : coast guard pararescue jumpers are trained to leap from helicopters into the sea to save boaters in distress. the

User Account

All Pages