{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Stats Sample Quizes

# Stats Sample Quizes - Stat 119 Sample quiz chapters 21 23...

This preview shows pages 1–2. Sign up to view the full content.

Stat 119 Name____________________________ Sample quiz, chapters 21 & 23 Red id: __________________________ 1. You collect data and test the hypotheses 50 . 0 : 50 . 0 : 0 = p H p H a A P-value of 0.06 is obtained. Which of the following is true? A. A 99% confidence interval for p will not include the value 0.50. B. A 95% confidence interval for p will not include the value 0.50. C. A 90% confidence interval for p will not include the value 0.50. D. We cannot make a decision using the information given. Answer: 2. We calculate a 95% confidence interval for p to be (0.42, 0.58) and want to test the following: H o : p = 0.40 vs. H a : p 0.40. We can best conclude: 3. Public health officials believe that 90% of children have been vaccinated against measles. A random survey of medical records at many schools across the country found that among more than 13,000 children only 89.4% had been vaccinated. A statistician conducted a two sided hypothesis test and calculated a p-value of 0.011. Which of the following statements is correct? 1.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}