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Author Question: Which is not a critical part of designing a good experiment? A) Random selection of subjects. B) ... (Read 231 times)

audragclark

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on: Jul 24, 2018
Which is not a critical part of designing a good experiment?
 
  A) Random selection of subjects.
  B) Replication of the on a sufficient number of subjects.
  C) Control of known sources of variability.
  D) All of these are important.
  E) Random assignment of subjects to treatments.

Question 2

Hoping to get information that would allow them to negotiate new rates with their advertisers, Natural Health magazine phoned a random sample of 600 subscribers. 64 of those polled said they use nutritional supplements. Which is true?
 
  I. The population of interest is the people who read this magazine.
  II. 64 is not a statistic; it's the parameter of interest.
  III. This sampling design should provide the company with a reasonably accurate estimate of the percentage of all subscribers who use supplements.
  A) I only
  B) I, II, and III
  C) I and III only
  D) II and III only
  E) I and II only
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sabina576

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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.
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audragclark

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Reply #2 on: Jul 24, 2018
Both answers were spot on, thank you once again


sabina576

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Reply #3 on: Jul 24, 2018
Great! Please up vote :D


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