Belief in Haunted Places A random sample of 335 college students were asked if they believed that places could be haunted, and 138 responded yes. Estimate the true proportion of college students who believe in the possibility of haunted places with 95% confidence. According to Time magazine, 37% of Americans believe that places can be haunted. Round intermediate and final answers to at least three decimal places. ______ < p < _______

Belief in Haunted Places A random sample of 335 college students were asked if they believed that places could be haunted, and 138 responded yes. Estimate the true proportion of college students who believe in the possibility of haunted places with 95% confidence. According to Time magazine, 37% of Americans believe that places can be haunted. Round intermediate and final answers to at least three decimal places. < p < _

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Categorical data. and 1.34 p value of all combined
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Write your answer in the p +- e notation. A study found that out of 39,700 drivers that went through a traffic intersection, 794 ran a red light. Construct a 90% confidence interval to estimate the proportion of people who ran the light. We will use estimation using confidence intervals. This time we will be using estimation of proportion. x ____________ n ____________ p hat ___________ C-level ___________
Question Help ▼ Summary statistics for the scores of the 27 students who completed a Dental Anxiety Scale questionnaire are x = 10.5 and s=3.3, Scores range from 0 (no anxiety) to 20 (extreme anxiety). Conduct a test of hypothesis to determine whether the mean Dental Anxiety Scale score for the population of college students differs from u= 11. Use a = 0.05. State the null and alternative hypotheses. Choose the correct answer below. A. Ho: H=11 versus H: u11 O B. Ho: H 11 versus H: u = 11 OC. Ho: H=11 versus Hn: H > 11 The test statistic for this small-sample test of a population mean is. (Round to two decimal places as needed.)
Please no written by hand solution and no img In a certain town a survey organization took a simple random sample of 225 homes to find the average price of a home. The sample average turned out to be $390,000. It was known that before the average price was $395,000 with an SD of $60,000. The organization was concerned that the average price has change with time. Can you say if the difference is a real change or just a chance variation?
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Section 05.04 Exercise 04 - Find Confidence Interval from Data (Mean Octane) Five measurements are taken of the octane rating for a particular type of gasoline. The results (in %) are 87.0, 86.0, 86.5, 93.0, and 85.3. Find a 99% confidence interval for the mean octane rating for this type of gasoline. The confidence interval for the mean octane rating for this type of gasoline is ). (Please enter the answers in ascending order.)