Elementary Statistics: A Step By Step Approach
9th Edition
ISBN: 9780073534985
Author: Allan Bluman
Publisher: McGraw-Hill Science/Engineering/Math
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Chapter 11.1, Problem 20EC
To determine
To State: The hypothesis and the claim.
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Chapter 11 Solutions
Elementary Statistics: A Step By Step Approach
Ch. 11.1 - Skittles Color Distribution MM/Mars, the makers of...Ch. 11.1 - How does the goodness-of-fit test differ from the...Ch. 11.1 - How are the degrees of freedom computed for the...Ch. 11.1 - How are the expected values computed for the...Ch. 11.1 - When the expected frequency is less than 5 for a...Ch. 11.1 - Prob. 5ECh. 11.1 - Prob. 6ECh. 11.1 - Prob. 7ECh. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - For Exercises 5 through 18, perform these steps....
Ch. 11.1 - Prob. 10ECh. 11.1 - Prob. 11ECh. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - Prob. 16ECh. 11.1 - Prob. 17ECh. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - Tossing Coins Three coins are tossed 72 times, and...Ch. 11.1 - Prob. 20ECCh. 11.2 - Satellite Dishes in Restricted Areas The Senate is...Ch. 11.2 - Prob. 1ECh. 11.2 - How are the degrees of freedom computed for the...Ch. 11.2 - Generally, how would the null and alternative...Ch. 11.2 - What is the name of the table used in the...Ch. 11.2 - How are the expected values computed for each cell...Ch. 11.2 - How are the null and alternative hypotheses stated...Ch. 11.2 - Prob. 7ECh. 11.2 - Prob. 8ECh. 11.2 - Prob. 9ECh. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - Prob. 13ECh. 11.2 - Prob. 14ECh. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - Prob. 17ECh. 11.2 - Prob. 18ECh. 11.2 - Prob. 19ECh. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - Prob. 21ECh. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - Prob. 25ECh. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - Prob. 27ECh. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - Prob. 29ECh. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - Prob. 31ECh. 11.2 - Prob. 32ECCh. 11.2 - Prob. 33ECCh. 11.2 - When the chi-square test value is significant and...Ch. 11 - For Exercises 1 through 10, follow these steps. a....Ch. 11 - Prob. 11.1.2RECh. 11 - Prob. 11.1.3RECh. 11 - Prob. 11.1.4RECh. 11 - Prob. 11.2.5RECh. 11 - Prob. 11.2.6RECh. 11 - Prob. 11.2.7RECh. 11 - Prob. 11.2.8RECh. 11 - The Data Bunk is located in Appendix B, or on the...Ch. 11 - Prob. 2DACh. 11 - Prob. 3DACh. 11 - Prob. 1CQCh. 11 - Determine whether each statement is true or false....Ch. 11 - Prob. 3CQCh. 11 - Prob. 4CQCh. 11 - Prob. 5CQCh. 11 - Prob. 6CQCh. 11 - Complete the following statements with the best...Ch. 11 - Prob. 8CQCh. 11 - Prob. 9CQCh. 11 - Prob. 10CQCh. 11 - Prob. 11CQCh. 11 - Prob. 12CQCh. 11 - Prob. 13CQCh. 11 - Prob. 14CQCh. 11 - Prob. 15CQCh. 11 - Prob. 16CQCh. 11 - Prob. 17CQCh. 11 - Prob. 18CQCh. 11 - Prob. 19CQCh. 11 - Prob. 1CTCCh. 11 - Prob. 2CTC
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- A random number generator selects two integers from 1 to 30. What is the probability that both numbers are less than 12?arrow_forwardIn a sample of 49 men, 38 said that they had less leisure time today than they had 10 years ago. In a sample of 49 women, 30 women said that they had less leisure time today than they had 10 years ago. At α=0.01, is there a difference in the proportions?Use p1 for the proportion of men with less leisure time. State the hypotheses and identify the claim with the correct hypothesis. H0 : p1=p2 ▼not claim H1 : p1≠p2 ▼claim This hypothesis test is a ▼two-tailed test. Find the critical value(s). Round the answer(s) to two decimal places. If there is more than one critical value, separate them with commas. Critical value(s):_______________arrow_forwardf our null hypothesis is H0: ? = 40, what are the three possiblealternative hypotheses?arrow_forward
- The average American consumes 9.8 liters of alcohol per year. Does the average college student consume less alcohol per year? State your null and alternative hypothesis H0:H0: Ha:Ha:arrow_forwardA group of scientist test the claim that hepititis C can live on a straw for longer than on a water bottle, on adverage. A) Write the null and alternative hypothesis. B) If the scientists commits a Type 1 error, write that error in context. C) If the scientist commits Type 2 error, write that error in context. D) If level of significance is 0.05 and the P-Value=0.017, write the conclution in context.arrow_forwardDetermine whether the claim stated below represents the null hypothesis or the alternative hypothesis. If a hypothesis test is performed, how should you interpret a decision that (a) rejects the null hypothesis or (b) fails to reject the null hypothesis? A report claims that less than 80% of households in a specific county struggle to afford basic necessities. Does the claim represent the null hypothesis or the alternative hypothesis?arrow_forward
- A store manager hypothesizes that the average number of pages a person copies on the store’s copy machine is less than 40. A sample of 50 customers’ orders is selected. At a = 0.01, is there enough evidence to support the claim? Use the P-value hypothesis-testing method State the hypotheses and identify the claim. 1. Ho: μ D 40 (Choose the letter of the best answer) A. < B. > C. ≤ D. ≥ E. = F. ≠ 2. Ha: μ 40 (Choose the letter of the best answer) A. < B. > C. ≤ D. ≥ E. = F. ≠ 3. The claim is (Choose the letter of the best answer) A. Ho B. Ha 4. Type of Test: - tailed test (Choose the letter of the best answer) A. Right B. Left C. Two 5. Compute the test value. Test Value = (Type the exact answer) 6. Find the P-value P-value: (Type the exact answer) Make the decision. 7. P a (Choose the letter of the best answer) A. ≤ B. > 8. Decision: Ho (Choose the letter of the…arrow_forwardA law enforcement agent believes that at least 84% of the drivers stopped for speeding on Saturday nights are under the influence of alcohol. A sample of 84 drivers who were stopped for speeding on a Saturday night was taken. Seventy-five percent of the drivers in the sample were under the influence of alcohol. (a) State the null and alternative hypotheses. (Enter != for ≠ as needed.) H0: Ha: (b) Compute the test statistic. (c) Using the p-value approach, test the hypotheses at the 0.05 level of significance. Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. Do not reject H0. There is insufficient evidence to conclude that less than 84% of the drivers stopped for speeding on Saturday nights are under the influence of alcohol.Do not reject H0. There is sufficient evidence to conclude that less than 84% of the drivers stopped for speeding on Saturday nights are under the influence of alcohol. Reject H0. There…arrow_forwardSelect one for each hypothesis testarrow_forward
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