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Oksana_A [137]
2 years ago
7

Q1. Ten percent of the items produced by a machine are defective. A random sample of 100 items is selected and checked for defec

ts. What is the standard error of the distribution of the sample proportions? Round your answer to three decimal places.
Mathematics
1 answer:
Tcecarenko [31]2 years ago
7 0

Answer: 0.030

Step-by-step explanation:

Given: The percent of the items produced by a machine are defective  :P=10\%=0.10

The percent of the items produced by machine which are not defective:Q=1-0.1=0.9

Sample size : n = 100

Now, the standard error of the proportion is given by :-

\text{S.E.}=\sqrt{\dfrac{0.1\times0.9}{100}}\\\\\Rightarrow\text{S.E.}=0.030

Hence, the the standard error of the distribution of the sample proportions=0.030

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