What is the shape meanexpected value and standard deviation

Reference no: EM13627644

According to an IRS study, it takes a mean time of 330 minutes for taxpayers to prepare, copy and electronically transfer a 1040 tax form. The standard deviation of this distribution is 80 minutes. A consumer watchdog agency selects a random sample of 40 taxpayers for further study

A. What is the shape, mean(expected value), and standard deviation of the sampling distribution of the sample mean for samples of size 40?

B. What is the probability that the sample mean is greater than 350 minutes?

Reference no: EM13627644

Questions Cloud

A minute later the current is only 081 a what is the : consider a light bulb with a filament made from tungsten with a resistivity temperature coefficient of 4.5e-3k. suppose

An lr circuit has a resistance r 25 w an inductance l 54 : an lr circuit has a resistance r 25 w an inductance l 5.4 mh and a battery of emf 9.0 v. how much energy is stored

What is the initial pressure of the gas what is the final : 1 kmol of n2 gas ideal is contained in a piston initially at 300k with a volume of 0.1 m3. the piston cylinder is well

Air enters a gas turbine with two stages of compression and : air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17 degrees celcius.

What is the shape meanexpected value and standard deviation : according to an irs study it takes a mean time of 330 minutes for taxpayers to prepare copy and electronically transfer

What is the initial pressure of the gas what is the final : 1 kmol of n2 gas ideal is contained in a piston initially at 300k with a volume of 0.1 m3. the piston cylinder is well

A hollow metal cube with sides 100mm floats at the : a hollow metal cube with sides 100mm floats at the interface between a layer of water and a layer of sae 10w oil such

The current in an rl circuit is zero at time t 0 and : the current in an rl circuit is zero at time t 0 and increases to 75 of its final value in 4.5 s. the time constant of

What is the shape meanexpected value and standard deviation : according to an irs study it takes a mean time of 330 minutes for taxpayers to prepare copy and electronically transfer

User Account

All Pages