Question
In: Statistics and Probability
a fraction defactive of no more than 0.04 i random sample size of 195 yields 40...
a fraction defactive of no more than 0.04 i random sample size of 195 yields 40 defects. What is the value of the test statistic?
Solutions
Expert Solution
Solution :
Given that,
= 0.04
1 -
= 0.96
n = 195
x = 40
Level of significance = 
= 0.0
Point estimate = sample proportion = 
= x / n = 0.205
Test statistic
z = (
-
) / 
*(1-)
/ n
= ( 0.205 - 0.04) /
(0.04*0.96) / 195
= 11.758
orchestra answered 3 years agoRelated Solutions
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