Question

$6.00 A PC manufacturer claims that no more than 2% of their machines are defective. In a random sample of 100 machines, it is

Found in Education: General-Education
Chapter 1, # 1
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volcanblack
 
 
Q:

A PC manufacturer claims that no more than 2% of their machines are defective. In a random sample of 100 machines, it is found that 4.5% are defective. The manufacturer claims this is a fluke of the sample. At a .02 level of significance, test the manufacturer's claim, and explain your answer.

Test and CI for One Proportion

Test of p = 0.02 vs p > 0.02

  
   

Sample

X

N

Sample p

98% Lower Bound

Z-Value

P-Value

  

1

4

100

0.040000

0.000000

1.43

0.077

  
 

Tutorial
 
$6.00
A PC manufacturer claims that no more than 2% of their machines are defective. In a random sample of 100 machines, it is
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  • Posted on Dec. 13, 2011 at 06:26:54AM
A:
Preview: ... o more than 2% of their machines are defective. In a random sample of 100 machines, it is found that 4.5% are defective. The manufacturer claims this is a fluke of the sample. At a .02 level of significance, test the manufacturer's claim, and explain your answer. ...
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