Statistics: Informed Decisions Using Data (5th Edition)
5th Edition
ISBN: 9780134133539
Author: Michael Sullivan III
Publisher: PEARSON
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Chapter 9.1, Problem 15AYU
To determine
90% confidence interval for population proportion.
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You are given the following information obtained from a random sample of 4 observations.
24
48
31
57
You want to determine whether or not the mean of the population from which this sample was taken is significantly different from 49. (Assume the population is normally distributed.)
(a)
State the null and the alternative hypotheses. (Enter != for ≠ as needed.)
H0:
Ha:
(b)
Determine the test statistic. (Round your answer to three decimal places.)
(c)
Determine the p-value, and at the 5% level of significance, test to determine whether or not the mean of the population is significantly different from 49.
Find the p-value. (Round your answer to four decimal places.)
p-value =
State your conclusion.
Reject H0. There is insufficient evidence to conclude that the mean of the population is different from 49.Do not reject H0. There is sufficient evidence to conclude that the…
65% of all violent felons in the prison system are repeat offenders. If 43 violent felons are randomly selected, find the probability that
a. Exactly 28 of them are repeat offenders.
b. At most 28 of them are repeat offenders. c. At least 28 of them are repeat offenders. d. Between 22 and 26 (including 22 and 26) of them are repeat offenders.
08:34
◄ Classroom
07:59
Probs. 5-32/33
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ا.
89
5-34. Determine the horizontal and vertical components
of reaction at the pin A and the normal force at the smooth
peg B on the member.
A
0,4 m
0.4 m
Prob. 5-34
F=600 N
fr
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0.
163586
5-37. The wooden plank resting between the buildings
deflects slightly when it supports the 50-kg boy. This
deflection causes a triangular distribution of load at its ends.
having maximum intensities of w, and wg. Determine w
and wg. each measured in N/m. when the boy is standing
3 m from one end as shown. Neglect the mass of the plank.
0.45 m
3 m
Chapter 9 Solutions
Statistics: Informed Decisions Using Data (5th Edition)
Ch. 9.1 - 1. A _______ ________ is the value of a statistic...Ch. 9.1 - 2. The ______ ____ _______ represents the expected...Ch. 9.1 - 3. True or False: A 95% confidence interval for a...Ch. 9.1 - 4. The value represents the _______ _______ of...Ch. 9.1 - 5. As the level of confidence of a confidence...Ch. 9.1 - 6. As the sample size used to obtain a confidence...Ch. 9.1 - In Problems 7–10, determine the critical value...Ch. 9.1 - In Problems 7–10, determine the critical value...Ch. 9.1 - In Problems 7–10, determine the critical value...Ch. 9.1 - In Problems 7–10, determine the critical value...
Ch. 9.1 - Prob. 11AYUCh. 9.1 - In Problems 11–14, determine the point estimate of...Ch. 9.1 - In Problems 11–14, determine the point estimate of...Ch. 9.1 - Prob. 14AYUCh. 9.1 - In Problems 15–20, construct a confidence interval...Ch. 9.1 - In Problems 15–20, construct a confidence interval...Ch. 9.1 - In Problems 15–20, construct a confidence interval...Ch. 9.1 - In Problems 15–20, construct a confidence interval...Ch. 9.1 - Prob. 19AYUCh. 9.1 - Prob. 20AYUCh. 9.1 - Prob. 21AYUCh. 9.1 - 22. You Explain It! Superstition A USA...Ch. 9.1 - Prob. 23AYUCh. 9.1 - Prob. 24AYUCh. 9.1 - NW 25. Giving Blood A survey of 2306 adult...Ch. 9.1 - 26. Saving for Retirement? A Retirement Confidence...Ch. 9.1 - Prob. 27AYUCh. 9.1 - 28. Family Values In a USA Today/Gallup poll, 768...Ch. 9.1 - Prob. 29AYUCh. 9.1 - 30. Reading In a survey of 700 community college...Ch. 9.1 - Prob. 31AYUCh. 9.1 - 32. Deficit Reduction The Sullivan Statistics...Ch. 9.1 - Prob. 33AYUCh. 9.1 - Prob. 34AYUCh. 9.1 - NW 35. High-Speed Internet Access A researcher...Ch. 9.1 - 36. Home Ownership An urban economist wishes to...Ch. 9.1 - 37. A Penny for Your Thoughts A researcher for the...Ch. 9.1 - Prob. 38AYUCh. 9.1 - Prob. 39AYUCh. 9.1 - Prob. 40AYUCh. 9.1 - Prob. 41AYUCh. 9.1 - Prob. 42AYUCh. 9.1 - Prob. 43AYUCh. 9.1 - 44. Simulation – When Model Requirements Fail A...Ch. 9.1 - 45. Cauliflower? Jane wants to estimate the...Ch. 9.1 - 46. Walk to Work Alan wants to estimate the...Ch. 9.1 - 47. Putting It Together: Hand Washing The American...Ch. 9.1 - Prob. 48AYUCh. 9.1 - Prob. 49AYUCh. 9.1 - Prob. 50AYUCh. 9.1 - Prob. 51AYUCh. 9.1 - Prob. 52AYUCh. 9.1 - Prob. 53AYUCh. 9.1 - 54. The 114th Congress of the United States of...Ch. 9.2 - 1. As the number of degrees of freedom in the...Ch. 9.2 - 2. True or False: The t-distribution is centered...Ch. 9.2 - 3. The notation tα is the t-value such that the...Ch. 9.2 - 4. True or False: The value of t0.10 with 5...Ch. 9.2 - 5. True or False: To construct a confidence...Ch. 9.2 - 6. The procedure for constructing a confidence...Ch. 9.2 - 7. (a) Find the t-value such that the area in the...Ch. 9.2 - Prob. 8AYUCh. 9.2 - Prob. 9AYUCh. 9.2 - Prob. 10AYUCh. 9.2 - In Problems 9–12, a simple random sample of size n...Ch. 9.2 - Prob. 12AYUCh. 9.2 - In Problems 13–16, determine the point estimate of...Ch. 9.2 - Prob. 14AYUCh. 9.2 - In Problems 13–16, determine the point estimate of...Ch. 9.2 - Prob. 16AYUCh. 9.2 - Prob. 17AYUCh. 9.2 - Prob. 18AYUCh. 9.2 - Prob. 19AYUCh. 9.2 - 20. A simple random sample of size n is drawn. The...Ch. 9.2 - Prob. 21AYUCh. 9.2 - Prob. 22AYUCh. 9.2 - Prob. 23AYUCh. 9.2 - Prob. 24AYUCh. 9.2 - Prob. 25AYUCh. 9.2 - Prob. 26AYUCh. 9.2 - 27. Blood Alcohol Concentration A random sample of...Ch. 9.2 - 28. Hungry or Thirsty? How much time do Americans...Ch. 9.2 - 29. Tootsie Pops A Tootsie Pop is a sucker with a...Ch. 9.2 - 30. How Much Do You Read? A recent Gallup poll...Ch. 9.2 - Prob. 31AYUCh. 9.2 - Prob. 32AYUCh. 9.2 - Prob. 33AYUCh. 9.2 - Prob. 34AYUCh. 9.2 - Prob. 35AYUCh. 9.2 - Prob. 36AYUCh. 9.2 - Prob. 37AYUCh. 9.2 - Prob. 38AYUCh. 9.2 - Prob. 39AYUCh. 9.2 - 40. Sexual Relations A question on the General...Ch. 9.2 - 41. Sample Size Dr. Paul Oswiecmiski wants to...Ch. 9.2 - 42. Sample Size Dr. Paul Oswiecmiski wants to...Ch. 9.2 - Prob. 43AYUCh. 9.2 - 44. Television A researcher wanted to determine...Ch. 9.2 - Prob. 45AYUCh. 9.2 - Prob. 46AYUCh. 9.2 - Prob. 47AYUCh. 9.2 - Prob. 48AYUCh. 9.2 - Prob. 49AYUCh. 9.2 - Prob. 50AYUCh. 9.2 - Prob. 51AYUCh. 9.2 - Prob. 52AYUCh. 9.2 - Prob. 53AYUCh. 9.2 - Prob. 54AYUCh. 9.2 - Prob. 55AYUCh. 9.2 - Prob. 56AYUCh. 9.3 - 1. True or False: The chi-square distribution is...Ch. 9.3 - 2. True or False: The shape of the chi-square...Ch. 9.3 - 3. True or False: To construct a confidence...Ch. 9.3 - 4. True or False: A confidence interval for a...Ch. 9.3 - In Problems 5–8, find the critical values and ...Ch. 9.3 - In Problems 5–8, find the critical values and ...Ch. 9.3 - In Problems 5–8, find the critical values and ...Ch. 9.3 - In Problems 5–8, find the critical values and ...Ch. 9.3 -
9. A simple random sample of size n is drawn from...Ch. 9.3 - Prob. 10AYUCh. 9.3 - 11. pH of Rain The following data represent the pH...Ch. 9.3 - 12. Travel Taxes Travelers pay taxes for flying,...Ch. 9.3 - 13. Crash Test Results The following data...Ch. 9.3 - 14. Crawling Babies The data in the next column...Ch. 9.3 - 15. Peanuts A jar of peanuts is supposed to have...Ch. 9.3 - Prob. 16AYUCh. 9.3 - 17. Critical Values Sir R. A. Fisher, a famous...Ch. 9.4 - 1. For what type of variable does it make sense to...Ch. 9.4 - Prob. 2AYUCh. 9.4 - Prob. 3AYUCh. 9.4 - Prob. 4AYUCh. 9.4 - In Problems 5–12, construct the appropriate...Ch. 9.4 - Prob. 6AYUCh. 9.4 - Prob. 7AYUCh. 9.4 - Prob. 8AYUCh. 9.4 - Prob. 9AYUCh. 9.4 - Prob. 10AYUCh. 9.4 - Prob. 11AYUCh. 9.4 - Prob. 12AYUCh. 9.4 - Prob. 13AYUCh. 9.4 - Prob. 14AYUCh. 9.4 - Prob. 15AYUCh. 9.4 - Prob. 16AYUCh. 9.4 - Prob. 17AYUCh. 9.4 - Prob. 18AYUCh. 9.4 - Prob. 19AYUCh. 9.4 - Prob. 20AYUCh. 9.4 - Prob. 21AYUCh. 9.4 - Prob. 22AYUCh. 9.4 - Prob. 23AYUCh. 9.4 - Prob. 24AYUCh. 9.4 - Prob. 25AYUCh. 9.4 - Prob. 26AYUCh. 9.4 - Prob. 27AYUCh. 9.5 - 1. What is bootstrapping? Be sure to include a...Ch. 9.5 - 2. If we wish to obtain a 95% confidence interval...Ch. 9.5 - Prob. 3AYUCh. 9.5 - Prob. 4AYUCh. 9.5 - Prob. 5AYUCh. 9.5 - Prob. 6AYUCh. 9.5 - Prob. 7AYUCh. 9.5 - Prob. 8AYUCh. 9.5 - Prob. 9AYUCh. 9.5 - 10. Crawling Babies The following data represent...Ch. 9.5 - Prob. 11AYUCh. 9.5 - Prob. 12AYUCh. 9.5 - 13. Bootstrap Proportions To estimate proportions...Ch. 9.5 - 14. Bootstrap Proportions To estimate proportions...Ch. 9.5 - Prob. 15AYUCh. 9.5 - Prob. 16AYUCh. 9.5 - Prob. 17AYUCh. 9.5 - Prob. 18AYUCh. 9.5 - Prob. 19AYUCh. 9.5 - Prob. 20AYUCh. 9.5 - 21. Simulation: What about the Median? Certain...Ch. 9 - Prob. 1RECh. 9 - Prob. 2RECh. 9 - Prob. 3RECh. 9 - Prob. 4RECh. 9 - Prob. 5RECh. 9 - Prob. 6RECh. 9 - Prob. 7RECh. 9 - Prob. 8RECh. 9 - Prob. 9RECh. 9 - Prob. 10RECh. 9 - Prob. 11RECh. 9 - Prob. 12RECh. 9 - Prob. 13RECh. 9 - Prob. 14RECh. 9 - Prob. 15RECh. 9 - Prob. 16RECh. 9 - Prob. 17RECh. 9 - Prob. 1CTCh. 9 - 2. Find the critical values and required to...Ch. 9 - Prob. 3CTCh. 9 - Prob. 4CTCh. 9 - Prob. 5CTCh. 9 - Prob. 6CTCh. 9 - Prob. 7CTCh. 9 - 8. Wimbledon Match Lengths A tennis enthusiast...Ch. 9 - Prob. 9CTCh. 9 - Prob. CS
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