This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A company has tried to improve the effectiveness of its dishwashing detergent and wants to see if it ... (Read 159 times)

wrbasek0

  • Hero Member
  • *****
  • Posts: 560
on: Jul 24, 2018
A company has tried to improve the effectiveness of its dishwashing detergent and wants to see if it works better than the original formula. They use 6 identical new dishwashers and load them identically with dirty dishes.
 
  Three packs of each of the two types of detergent are used, and they are randomly assigned to one of the six dishwashers. After the load is run, they rate each load for overall cleanliness. Which of the following is true?
  A) Blinding is impossible in this experiment because they must be able to see the dishes.
  B) The explanatory variable is the different dishwashers.
  C) Because each brand is used in three dishwashers, replication is used properly.
  D) A control group with no detergent at all is needed.
  E) The response variable is the type of detergent.

Question 2

Does Procellera Antimicrobial Wound Dressing help injuries heal faster? Researchers checked records of 38 patients who had been treated for acute or chronic wounds between 2010 and 2012.
 
  They found that those who had been treated with Procellera healed almost twice as fast. This is a
  A) matched experiment
  B) prospective study
  C) retrospective study
  D) survey
  E) randomized experiment
Stats: Modeling the World ¦ Bock, Velleman, De Veaux ¦ 4th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Ahnyah

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 24, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


wrbasek0

  • Member
  • Posts: 560
Reply 2 on: Jul 24, 2018
YES! Correct, THANKS for helping me on my review

bulacsom

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Reading and talking about a picture book is one effective way to improve children’s language ... Reading and talking about a picture book is one effective way to improve children’s language ...
This headache remedy was “guaranteed” by the drug company; 1906. This headache remedy was “guaranteed” by the drug company; 1906.
Improve your driver posture Improve your driver posture
Helgeson Company has identified the following items for possible inclusion when taking a ... Helgeson Company has identified the following items for possible inclusion when taking a ...
A company that makes environmental measuring devices has calculated their revenue and costs as ... A company that makes environmental measuring devices has calculated their revenue and costs as ...
During a period of high power demand, the voltage output of the power company is reduced by ... During a period of high power demand, the voltage output of the power company is reduced by ...
Video: Gas exchange - driving force

For a complete list of videos, visit our video library