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Chapter 8: Q 31. (page 522)

Check whether each of the conditions is met for calculating a confidence interval for the population proportion

Salty chips A quality control inspector takes a random sample of 25 bags of potato chips from the thousands of bags filled in an hour. Of the bags selected, 3 had too much salt.

Short Answer

Expert verified

The condition which is not met is that of normality.

Step by step solution

01

Given Information

It is given that n=25

Population is thousand of bags of potato.

02

Explanation

  • Condition of Random Selection: As sample is SRS, this condition is satisfied.
  • Less than 10% of population: role="math" localid="1654278677916" 25is less than 10%of population (thousand of population bags)
  • Number of success and failure should be 鈮�10: No of success are 3<10and failure is 25-3=22鈮�10. This condition is not met.

All conditions are not met.

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