In 1992 the faa conducted 86991 pre-employment drug tests, Ask an Expert

Statistics

In 1992, the FAA conducted 86,991 pre-employment drug tests on job applicants who were to be engaged in security and safety-related jobs, and found that 1,143 were positive.

(a) Make a 95 percent confidence interval for population proportion of positive drug tests.

(b) Why is the normality assumption not problem, despite the very small value of p?

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M917101

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

A survey asks 20002000 workers has the economy forced you

A survey asks 20002000 ?workers, "Has the economy forced you to reduce the amount of vacation you plan to take this? year?" FiftyFifty?-fourfour percent of those surveyed say they are reducing the amount of vacation. Twe ...

The probability that a student passes a class is pp 059the

The probability that a student passes a class is p(P) = 0.59. The probability that a student studied for a class is p(S) = 0.55. The probability that a student passes a class given that he or she studied for the class is ...

The mean of a population of raw scores is 50 ox18 what is

The mean of a population of raw scores is 50 (ox=18). What is the probability of randomly selecting a sample of 40 score having a mean above 46?

The ph acidity of the liquor is critical for regulating dye

The pH (acidity) of the liquor is critical for regulating dye uptake and hence the final color. There are 5 kettles, all of which receive dye liquor from a common source. Past data show that pH varies according to a Norm ...

When a company founder sells stock to outside investors in

When a company founder sells stock to outside investors in order to raise? capital, the share of the company owned by the founder and the? founder's control over the company will be reduced.

What is the probability of a value from a normal

What is the probability of a value from a normal distribution being between 0.75 standard deviations above the mean and 1.75 standard deviations below the mean? (Round calculations to nearest thousandth (3 digits))

The computer systems department has 8 faculty 6 are tenured

The computer systems department has 8 faculty, 6 are tenured. A committee is formed of 3 faculty members. If members are submitted at random: - What is the probability all members of the committee are tenured? - What is ...

Consider a hypothesis testing problem where the null and

Consider a hypothesis testing problem where the null and the alternative hypotheses are defined as H0 μ=5 Vs. H1 :μ≠5 H0:μ=5 Vs. H1:μ≠5 A 95% confidence interval for μ was calculated as (2, 7). A) What would be your ...

For planning purposes truss manufacturers must try to

For planning purposes, truss manufacturers must try to predict the number of hurricanes that will hit the eastern seaboard of the United States in any given year. If this area is hit with an average of 6 hurricanes per y ...

The contents of a particular bottle of shampoo marked as

The contents of a particular bottle of shampoo marked as 150 ml are found to be 153 ml at an average, with a standard deviation of 2.5 ml. What proportion of shampoo bottles contain less than the marked quantity? Assume ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert