Question

Sarah works for a coffee company. The farmers who supply the company spray Chemical X as...

Sarah works for a coffee company. The farmers who supply the company spray Chemical X as a pesticide. the company brings in 2million pounds of coffee a year, and they take a sample of beans every 10,000lbs to ensure that levels of Chemical X are around 3ppm.

Last year the average ppm of Chemical X was 2.43, with a standard deviation of 3.848.

a) What is the statistical power of the current sampling scheme?

b) how many samples does Sarah need to take to be 85% sure that Chemical X doesnt differ from 3ppm by more than 1.5ppm in either direction?


Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
It had been a busy day for Marsha Chamberland. She had spent most of it cleaning...
It had been a busy day for Marsha Chamberland. She had spent most of it cleaning and running errands in prepara- tion for her brother-in-law Ed’s return, and now she was preparing a quick dinner for her family. Ed, an industry official whose job it was to decide whether or not new products needed premarket approval by the U.S. Food and Drug Administration, had spent the last two weeks in Tennessee expressing his views on genetic engineering in food. He...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT