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Author Question: The following data represent the number of complaints per month that customer service received at a ... (Read 47 times)

SGallaher96

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The following data represent the number of complaints per month that customer service received at a large retailer over the last 15 months.
 
  Month Complaints Month Complaints
  1 10 9 9
  2 7 10 5
  3 12 11 8
  4 10 12 6
  5 8 13 7
  6 11 14 3
  7 9 15 5
  8 7
 
  The residual for Month 6 is ________.
  A) -2.6
  B) -0.8
  C) 2.4
  D) 5.0

Question 2

Verizon Wireless would like to estimate the proportion of households that use cell phones for their phone service without a land line. A random sample of 150 households was selected and 48 relied strictly on cell phones for their service.
 
  The margin of error for a 90 confidence interval for the proportion based on this sample is ________.A) 0.0333
  B) 0.0475
  C) 0.0561
  D) 0.0627


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Sammyo

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SGallaher96

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Reply 2 on: Jun 24, 2018
:D TYSM


mochi09

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Reply 3 on: Yesterday
Wow, this really help

 

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