Question
In: Statistics and Probability
The badge fabricator the sells all badges to county law enforcement agencies claims each of its...
The badge fabricator the sells all badges to county law
enforcement agencies claims each of its badges contains exactly
60.00 milligrams of precious metal. You sample 38 badges and find
that the X̅ = 41 milligrams and s = 1.60 milligrams. Should the
company’s claim be rejected? Will you use a one-tail test or a
two-tail test? Why? Test at α = 0.05. [Show your work including
graphs]
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Expert Solution
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orchestra answered 1 year agoRelated Solutions
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Warren County Telephone Company claims in its annual report that “the typical customer spends $60 per...
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“the typical customer spends $60 per month on local and
long-distance service.” A sample of 12 subscribers revealed the
following amounts spent last month. $64 $63 $63 $68 $56 $64 $68 $62
$64 $54 $54 $69
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your answer to 3 decimal places.)
Estimated population mean $
b. Develop a 98% confidence interval for the population mean.
(Use t Distribution...
Warren County Telephone Company claims in its annual report that “the typical customer spends $61 per...
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“the typical customer spends $61 per month on local and
long-distance service.” A sample of 12 subscribers revealed the
following amounts spent last month.
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What is the point estimate of the population mean?
(Round your answer to 3 decimal places.)
Estimated population mean
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t Distribution...
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"the typical customer spends $60 per month on local and
long-distance service." A sample of 12 subscribers revealed the
following amounts spent last month.
$63
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$65
$68
$63
$64
$62
$55
$67
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