Pesticide concentrations in sediment from irrigation areas, Ask an Expert

Statistics

Pesticide concentrations in sediment from irrigation areas can provide information required to assess exposure and fate of these chemicals in freshwater ecosystems and their likely impacts to the marine environment. In a study (Jochen F. Muller et al., "Pesticides in sedi- ments from Queensland Irrigation channels and drains," Marine Pollution Bulletin 41(7-12), 294-301, 2000), 103 sediment samples were collected from irrigation channels and drains in 11 agricultural areas of Queensland. In 74 of these samples, they detected DDTs with concentration levels up to 840 ng g-1 dw. Obtain a 95% con?dence interval for the proportion of total number of sediments with detectable DDTs.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91640381

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

You work for a firm that manufactures dvd players your dvd

You work for a firm that manufactures DVD players. Your DVD players last an average of 800 days with a standard deviation of 200 days. You want to set the warranty length such that you only have to replace 1.5% of all th ...

The average price of a television on a certain web site is

The average price of a television on a certain Web site is ?$760. Assume the price of these televisions follows the normal distribution with a standard deviation of ?$190. Complete parts a through d below. What is the pr ...

A student is to be selected randomly from a group of

A student is to be selected randomly from a group of students. For each classification of freshman and sophomore, there is a math major, an art major, and a biology major. The probability of each individual being selecte ...

Elle mae industries has a cash balance of 59000 accounts

Elle Mae Industries has a cash balance of $59,000, accounts payable of $195,000; inventory of $235,000; accounts receivable of $295,000; notes payable of $219,000; and accrued wages and taxes of $49,000. How much net wor ...

An investment costs 60096 and offers a return of 10 percent

An investment costs $60,096 and offers a return of 10 percent annually for ten years. What are the annual cash inflows anticipated from this investment? Use Appendix D to answer the question. Round your answer to the nea ...

Are there more children diagnosed with autism spectrum

Are there more children diagnosed with Autism Spectrum Disorder (ASD) in states that have larger urban areas over states that are mostly rural? In the state of Pennsylvania, a fairly urban state, there are 245 eight year ...

A student is gathering data on the driving experiences of

A student is gathering data on the driving experiences of other college students. One of the variables measured is the type of car the student drives. These data are coded using the following method: 1 = subcompact, 2 = ...

The companys cleaning service states that they spend more

The company's cleaning service states that they spend more than 46 minutes each time the cleaning service is there. The company times the length of 37 randomly selected cleaning visits and finds the average is 47.6 minut ...

Twelve different video games showing substance use were

Twelve different video games showing substance use were observed and the duration of times of game play? (in seconds) are listed below. The design of the study justifies the assumption that the sample can be treated as a ...

Jen amp barrys fast fresh salad bags starts with 280000

"Jen & Barry's Fast Fresh Salad Bags" starts with $280,000 invested. Jen and Barry pay 20% down and finance the balance with a 20-year small business loan at 4.5% compounded monthly. What is the amount of their monthly l ...

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