Before a beach is declared safe for swimming a test of the, Ask an Expert

Statistics

Before a beach is declared safe for swimming, a test of the bacteria count in the water is conducted with the null and alternative hypotheses formulated as

H₀: Bacteria count is less than or equal to the specified upper limit for safety
H₁: Bacteria count is more than the specified upper limit for safety

a. What are type I and type II errors in this case?

b. Which error is more costly?

c. In the absence of any further information, which standard value will you recommend for α?

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92182531

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Given the probability distribution functionx 0 1

Given the probability distribution function: x 0 1 2 Probability 0.25 0.50 0.25 a. Graph the probability distribution function. b. Calculate and graph the cumulative probability distribution. c. Find the mean of the rand ...

A research a research institute conduct the clinical trials

A research a research institute conduct the clinical trials of a method designed to increase the probability of conceiving a boy. Amount 170 to babies born to parents using the method. 146 for boys. Identity identify the ...

In random sampling why is cluster sampling an example of

In random sampling, why is cluster sampling an example of probability sampling?

Yixuan is building a tower out of lego pieces for the

Yixuan is building a tower out of Lego pieces. For the bottom layer of the tower, he has 12 large Lego blocks to choose from. Each of these large blocks is a different color and he has decided to use 5 of them for the bo ...

Suppose that 1 of the employees of a certain company use

Suppose that 1% of the employees of a certain company use illegal drugs. This company performs random drug tests that return positive results 99% of the time if the person is a drug use. However, it also has a 2% false p ...

Babies weighing less than 55 pounds at birth are considered

Babies weighing less than 5.5 pounds at birth are considered "low-birth-weight babies." In the United States, 7.6% of newborns are low-birth-weight babies. The following information was accumulated from samples of new bi ...

If you are constructing a confidence interval for a

If you are constructing a confidence interval for a population mean, for the same confidence level, the width of the confidence interval will __________ as the sample size increases. Decrease Increase Stay the same Depen ...

Using a telephone survey of 400 randomly selected

Using a telephone survey of 400 randomly selected registered voters, he solicits both their party identification and whether or not they had read the newspaper that day. The results are displayed in the following cross-t ...

A logging contractor has three feller bunchers on any given

A logging contractor has three feller bunchers. On any given day, each machine has a 90% chance of working. The contractor is considering buying a fourth feller buncher to offset the possibility of none of the machines o ...

Most analysts focus on the cost of tuition as the way to

Most analysts focus on the cost of tuition as the way to measure the cost of a college education. But incidentals, such as textbook costs, are rarely considered. A researcher at Drummand University wishes to estimate the ...

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