QUESTION 5A new surgical procedure has promising results to alleviate hip pain, but a portion of patients who receive the procedure report an audible squeaking noise coming from the hip within six months.Data from a follow-up study of 143 patients revealed that 10 of them could hear squeaking.How large of a sample size would be necessary if you were targeting a value of E = 0.03 on the confidence interval above?O A. n = 245OB. n = 364O C. n = 480O D.n = 562

E = 0.03 estimated proportion = 10/143 = 0.0699 = 0.07 α = 0.01

Answered: QUESTION 5 A new surgical procedure has…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

QUESTION 1 A recent study of over 1000 parents on cyberbullying showed that a 95% confidence interval of proportion of kids who faced bullying in social media sites and apps is (0.1200, 0.1433). Find the sample proportion of kids who faced bullying in social media sites and apps. Round your answer to four decimal places. QUESTION 2 The amount of time a bank teller spends with each customer has a population mean of 5 minutes and a standard deviation of 1.5 minute. If a random sample of 36 customers is selected, what is the probability that the sample mean is less than 4.5 minutes? Round your answer to four decimal places. QUESTION 3 The daily electrical energy consumption (in Watts) during July for a random sample of households was recorded. The mean was 3399 W and the standard deviation was 316 W. Assume the underlying distribution of the consumption is normal. Find the marging of error E of the 95% confidence interval for the mean daily electrical energy consumption during that month.…
Question 3 A group of engineers developed a new design for a steel cable. They need to estimate the amount of weight the cable can hold. The weight limit will be reported on cable packaging. The engineers take a random sample of 41 cables and apply weights to each of them until they break. The 41 cables have a mean breaking weight of 772.3 lb. The standard deviation of the breaking weight for the sample is 15.3 lb. Find the 95% confidence interval to estimate the mean breaking weight for this type cable. ( ) Your answer should be to 2 decimal places.
Question 5 Assume that a sample is used to estimate a population mean p. Find the 90% confidence interval for a sample of size 71 with a mean of 57.2 and a standard deviation of 20.7. Enter your answer as an open- interval (i.e., parentheses) accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). 90% C.I. %3D Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. Submit Question
Question 3 Create a 90% confidence interval for a population proportion from a sample of size 84 with sample 46 proportion p 84 [three decimal accuracy] [three decimal accuracy] Submit Question a山T0 MAR 18 MacBook Air 80 F1 F2 F3 F4 F5 F6 F @ # $ 1 2 3 4 5
Question 8 1p Find the indicated critical z value. Find the value of za2 that corresponds to a confidence level of 92.50%. O 0.0375 0 1.78 O-1.78 -1,78 0 1.44
QUESTION 30 Find the confidence level related to the critical value to/2= -1.81 where the sample size n =9. 91.2% 089.2% 90.3% 89.8%
Question 2: In order to determine the miles per gallon rating for a new midsize minivan, an automaker randomly selected a sample of 50 vehicles. The showed = 31.56 mpg with s=.798 mpg. At 95% confidence, what is the minimum mpg rating you could give the car?
QUESTION 1 A hardware store determined the current balances for a random sample of 100 customers with non-zero balances. The sample mean of the amount owed was $100.00 and the standard deviation was $25. Use the assumption that the sample standard deviation is equal to the population standard deviation. You are asked to find a confidence interval for the average amount owed by all customers with a non-zero balance. Which Minitab procedure would be most appropriate to use for this task? O Power and Sample Size/1-Sample Z O Power and Sample Size/Sample Size for Estimation/1-Sample Z O Basic Statistics/1-Sample Z O Basic Statistics/1-Sample t
QUESTION 23 It was found that in a study of air-bag effectiveness 900 crashes of midsize cars equipped with air bags, 70 of the crashes resulted in hospitalization of the drivers. We want to test the claim that the air-bag hospitalization rate is more that the 6.8% rate for crashes of midsize cars equipped with automatic safetly belts. At 0.05 significance level we conclude that Othere is sufficient evidence to support the claim that for crashes of midsize cars, the air-bag hospitalization rate exeeds the 6.8% rate for automatic safetly belts. there is no sufficient evidence to support the claim that for crashes of midsize cars, the air-bag hospitalization rate exceeds the 6.8% rate for automatic safetly belts. Othere is sufficient evidence to support the claim that for crashes of midsize cars, the air-bag hospitalization rate is at least 6.8% rate for automatic safetly belts. there is no sufficient evidence to support the claim that for crashes of midsize cars, the air-bag…
QUESTION 24 A journal article reports that a random sample of 25 antivirus software packages was used as a basis for calculating a 98% t-based confidence interval for the true mean annual cost of an antivirus software in UAE. The resulting interval was (AED 191, AED 290). Find the margin of error (E) of the 98% t-based confidence interval. If needed, round your answer to one decimal place.
question 3
Question 9 Two independent samples are selected from two populations with means µg and u2, respectively. Suppose a 99% confidence interval for u1 - H2 is (-1.65, 21.65), a 95% confidence interval is (0.2, 19.8), and a 90% confidence interval is (1.775, 18.225). In testing Ho : H1 - H2 = 0 versus H1: H1 - H2 0, the p-value is between 0.20 and 1.00 between 0.10 and 0.15 between 0.05 and 0.10 between 0.01 and 0.05. between 0.15 and 0.20

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS