An internal revenue oversight board survey found that 82 of

Reference no: EM13614610

An Internal Revenue Oversight Board survey found that 82% of taxpayers said that it was very important for the Internal Revenue Service (IRS) to ensure that high-income tax payers do not cheat on their tax returns (The Wall Street Journal, February 11, 2009).

a. For a sample of eight taxpayers, what is the probability that at least six taxpayers say that it is very important to ensure that high-income tax payers do not cheat on their tax returns? Use the binomial distribution probability function shown in Section 5-4 to answer this question.

b. For a sample of 80 taxpayers, what is the probability that at least 60 taxpayers say that it is very important to ensure that high-income tax payers do not cheat on their tax returns? Use the normal approximation of the binomial distribution to answer this question.

c.As the number of trails in a binomial distribution application becomes large, what is the advantage of using the normal approximation of the binomial distribution to compute probabilities?

d.When the number of trials for a binominal distribution application becomes large, would developers of statistical software packages prefer to use the binomial distribution probability function shown in Section 5-4 or the normal approximation of the binomial distribution shown in Section 6-3? Explain.

Reference no: EM13614610

Questions Cloud

Find the p-value an independent random sample is selected : find the p-value an independent random sample is selected from an approximately normal population with an unknown

Determine the maximum theoretical speed that may be : determine the maximum theoretical speed that may be achieved over a distance of 360ft by a car of weight w starting

Each year about 1500 students take the introductory : each year about 1500 students take the introductory statistics course at a large university. this year scores on the

If the inside diameter is 40 in the wall thickness is 38 in : a 45 degree strain rosette is placed on the compressed air tank with gage a oriented parallel to the axis of the tank.

An internal revenue oversight board survey found that 82 of : an internal revenue oversight board survey found that 82 of taxpayers said that it was very important for the internal

Determine the maximum span lmax of a simply supported log : a timber company wishes to increases sales of timber by supplying log cabin kits that can be assemed and used as

Construct a 95 confidence interval and determine whether : production engineers at sinotron believe that a modified layout on its assembly lines might increase average worker

An issue that faces individuals investing for retirement is : an issue that faces individuals investing for retirement is allocating assets among different investment choices.

If wood beams are available with cross secstions having h2b : a timber beam is to be selected to sustain a maximum transverse shear of vmax 50 kn without exceeding an allowable

User Account

All Pages