OpenStax, Introductory Statistics 2e §9.5 Additional Information and Full Hypothesis Test Examples · Try It 9 · Statistics · Hypothesis testing
Additional Information and Full Hypothesis Test Examples · Try It 9
A car soap gets rid of 30% of stains on the car. After adding a new compound to the soap, the soap is used on a car and found to wash 20 stains out of the 50 stains on the car. With the level of significance being 0.01, find out if adding the new compound to soap is beneficial.
OpenStax, Introductory Statistics 2e · §9.5 Additional Information and Full Hypothesis Test Examples · Try It 9
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