Example 11.4 Hypothesis testing for a population proportion In 1999, 5.8% of job applicants who were tested for drugs failed the test. At the 0.01 significance level, test the claim that the failure rate is now lower if a simple random sample of 1,520 current job applicants results in 58 failures. What does the population p stand for in the context of this problem? Interpret the p-value.
Added by Lori H.
Close
Step 1
H₀: p = 0.058 (The failure rate is the same as in 1999) H₁: p < 0.058 (The failure rate is lower than in 1999) Show more…
Show all steps
Your feedback will help us improve your experience
Madhur L and 92 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Based on a random sample of 400 people between 20 and 35 years old, the unemployment rate has been 10.8%. Assume that the unemployment rate for all adults is 7.9%. What is the p-value for a hypothesis test used to support that the unemployment rate in the age group of people between 20 and 35 years old is higher than that for all adults? 0.0984 0.0158 0.0015 0.0145
Robin C.
1 Sample Hypothesis Test for a Population Proportion. Test the claim that the proportion of adults who smoked a cigarette in the past week is less than 0.25. The sample statistics are n= 1018 subjects, and 224 saying they smoked a cigarette in the past week. Take a = .05 State the test statistic, the p value, and your conclusion.
Adi S.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD