This topic contains a solution. Click here to go to the answer

Author Question: A farmer wishes to test the effects of a new fertilizer on her tomato yield. She has four ... (Read 161 times)

Redwolflake15

  • Hero Member
  • *****
  • Posts: 569
A farmer wishes to test the effects of a new fertilizer on her tomato yield. She has four equal-sized plots of land-- one with sandy soil, one with rocky soil, one with clay-rich soil, and one with average soil.
 
  She divides each of the four plots into three equal-sized portions and randomly labels them A, B, and C. The four A portions of land are treated with her old fertilizer. The four B portions are treated with the new fertilizer, and the four Cs are treated with no fertilizer. At harvest time, the tomato yield is recorded for each section of land. What type of experimental design is this? A) randomized block design B) completely randomized design
  C) matched-pairs design D) double-blind design

Question 2

When performing a multiple linear regression, if we test the null hypothesis that the coefficients are all zero, what is the decision rule?
 
  A) If p < , then reject the null hypothesis.
  B) If p > , then reject the null hypothesis.
  C) If p < , then fail to reject the null hypothesis.
  D) If p > , then fail to reject the alternative hypothesis.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

billybob123

  • Sr. Member
  • ****
  • Posts: 336
Answer to Question 1

A

Answer to Question 2

A



Redwolflake15

  • Hero Member
  • *****
  • Posts: 569
Both answers were spot on, thank you once again



billybob123

  • Sr. Member
  • ****
  • Posts: 336

 

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

For a complete list of videos, visit our video library