A manufacturer of eyeglasses is testing to see if the percent of scratched lenses in a given time period is higher than 12% of all lenses with defects. Looking at the type of defects, they found in a certain time period that out of 34,138 defective lenses, 4267 were due to scratches. Test the claim from above at a 1% level of significance. State the hypotheses. H0: p ≤ ___ HA: p > ___ Calculate the sample proportion. Round to four decimal places. p̂ = ___ Calculate the test statistic. Round to two decimal places. z = ___ Find the p-value. Give to four decimal places. p-value = ___

A manufacturer of eyeglasses is testing to see if the percent of scratched lenses in a given time period is higher than 12% of all lenses with defects. Looking at the type of defects, they found in a certain time period that out of 34,138 defective lenses, 4267 were due to scratches. Test the claim from above at a 1% level of significance. State the hypotheses. H0: p ≤ _ HA: p > _ Calculate the sample proportion. Round to four decimal places. p̂ = _ Calculate the test statistic. Round to two decimal places. z = _ Find the p-value. Give to four decimal places. p-value = ___

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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