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Author Question: Suppose that a Normal model describes fuel economy (miles per gallon) for automobiles and that a ... (Read 107 times)

cartlidgeashley

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on: Jul 25, 2018
Suppose that a Normal model describes fuel economy (miles per gallon) for automobiles and that a Toyota Corolla has a standardized score (z-score) of +2.2. This means that Corollas . . .
 
  A) get 2.2 miles per gallon.
  B) achieve fuel economy that is 2.2 standard deviations better than the average car.
  C) get 2.2 mpg more than the average car.
  D) have a standard deviation of 2.2 mpg.
  E) get 2.2 times the gas mileage of the average car.

Question 2

Suppose a Normal model describes the number of pages printer ink cartridges last. If we keep track of printed pages for the 47 printers at a company's office, which must be true?
 
  I. The page counts for those ink cartridges will be normally distributed.II. The histogram for those page counts will be symmetric.III. 95 of those page counts will be within 2 standard deviations of the mean.
  A) I, II, and III B) I only C) II only D) none E) II and III
Stats: Modeling the World ¦ Bock, Velleman, De Veaux ¦ 4th Edition
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zacnyjessica

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Reply #1 on: Jul 25, 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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cartlidgeashley

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Reply 2 on: Jul 25, 2018
Gracias!

lcapri7

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Reply 3 on: Yesterday
Wow, this really help

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