anonymous
  • anonymous
A data research company finds that monthly sales of hard disks in California is 1.445 million units on average with a standard deviation of 45,000. What is the z-score corresponding to 1.500 million units
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
@rational This one seems easy as well but again I cant get it. I just dont seem to be good at this whole z-units thing
rational
  • rational
45,000 = 0.045 million
Vocaloid
  • Vocaloid
z-score formula: z-score = (given data value - mean)/standard deviation

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More answers

rational
  • rational
mean = 1.445 standard deviation = 0.045 given data value = 1.5 plug them in the zscore formula given by Vocaloid
anonymous
  • anonymous
.0005
rational
  • rational
doesn't look correct try again
rational
  • rational
z-score = (given data value - mean)/standard deviation = (1.5 - 1.445)/0.045 = ?
anonymous
  • anonymous
\[1.5-1.445/.0045\]
anonymous
  • anonymous
12.22
rational
  • rational
try again
anonymous
  • anonymous
1.222 sorry
rational
  • rational
Yep!
anonymous
  • anonymous
Ty so much!

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