Math Solutions

[See Solution] The quality control department of The Camping Furniture found that 215 out of a randomly selected sample of 1,000 folding chairs did not meet

Question: The quality control department of The Camping Furniture found that 215 out of a randomly selected sample of 1,000 folding chairs did not meet the rigid standards set by the owners of the company.

  1. Test the null hypothesis that the proportion of folding chairs that do not meet the standards set by the owners is twenty percent against .a suitable one-sided alternative selected by you. Let \(\alpha =0.05\).
  2. How large should the sample be if the quality control department wishes to know the true proportion of folding chairs that do not meet the standards with an error of 0.01 and 0.99 confidence?

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