Q7. The 95% C.I. is calculated as 95% C.I.= X ± 1.96and theп99% C.I. is calculated as 99% C.I.= X ± 2.57How will happen the Confidence Interval change when it is increasedfrom 95% to 99% using the same sample.A. Widens with the same centre.B. Narrows with different centres.C. Same range with different centres.D. Widens with different centres.О А. АОВ. ВС. СO D. D

We have given that 95% confidence interval and 99% confidence interval.

Answered: Q7. The 95% C.I. is calculated as 95%…

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

A statistics class is estimating the mean height of all female students at their college. They collect a random sample of 42 female students and measure their heights. The mean of the sample is 65.3 inches and the sample standard deviation is 5.4 inches. Find the 90% confidence interval for the mean height of all female students in their school? Assume that the distribution of individual female heights at this school is approximately normal. 1. The t value is 1.3025 2. The standard error has a value of -- 3. The margin of error has a value of 4. Find the 90% confidence interval for the mean height of all female students in their school
Sal knows that parties of people on average spend 75 minutes at their restaurant. They wonder if this average is significantly different on the weekends. They found the average time spent by the 30 parties which dined there this weekend was 82 minutes with a SD of 17 minutes. Assume an alpha of .05. The lower end of the 95% confidence interval is and the higher end of the 95% confidence interval is.
H. Let X1,..., X, be a random sample from some distribution with unknown u. It's known that X 100 and X = 1783. %3D %3D (40) Supposen = 144 and o? = 12. The value of a, corresponding to the confidence interval [0.7, 1.3] is (a) 0.212 (b) 0.122 (c) 0.050 (d) 0.298
K Large samples of women and men are obtained, and the hemoglobin level is measured in each subject. Here is the 95% confidence interval for the difference between the two population means, where the measures from women correspond to population 1 and the measures from men correspond to population 2: -1.76 g/dL
Determine whether the following statements are True or False: In a confidence interval (CI) for a population mean, the margin of error (MOE) is half the width of the CI. If we constructed 1000 independent 90% CI’s for a population mean µ, thenwe’d expect about 900 of them to contain µ If we increase the sample size of SRS’s, then the width of the CI’s corresponding to the SRS’s decreases, i.e., the CI’s become narrower
lly Account Sum Next Paym Due Da Account Sump e number Apm 3. A poll of 360 randomly selected Rochesterians showed that 234 of them voted in last month's election. Find the 90% confidence interval of the true population proportion o A TEXAS INSTRUME Rochesterians who voted. a. Find the margin of error. Round to two decimal places. STAT PLOT ES TBLSET 2 WINDOW FORMA QUIT INS 2nd MODE A-LOCK LINK LIST ALPHA X,T,e,n S TEST A ANGLE B DRA MATH APPS PE b. Find the 90% confidence interval. MATRX D. SIN-1 E COS x1 SIN I | EE 10* Nu LOG ex S 4 T. L5 c. Write a statement that correctly interprets the confidence interva LN 4 RCL X L1 Y L2 STO 1 OFF CATALOG Ui ON d. Based on the results can we safely conclude that fewer than 72% of Rochester voted? Explain. Contact a writing, by ema Ju also agree the e number is a ce
The interval [40 50] represents a 90% confidence interval for a population mean. Which of the following is most likely to be the corresponding 95% confidence interval? (Hint: in a normal distribution, close to 90% of the values are within 1.65 standard deviations of the mean and close to 95% of the values are within 2 standard deviations of the mean) O A. [42 48] В. [36 54] OC. [40 54] D. [30 60]
6.2.3 Find the critical value t, for the confidence level c=0.80 and sample size n= 12. tents Click the icon to view the t-distribution table. Resources t.=(Round to the nearest thousandth as needed.)
14. The sales price of a specific brand of cereal is believed to be normally distributed. Data were collected for a sample of 16 boxes of that brand of cereal. If the sample mean is 2 OMR and the sample standard deviation is 0.4 OMRthen the 90% confidence interval for the population mean is A. (1.8355 , 2.1645) B. (1.8040 , 2.1960) C. None D. (1.8247 , 2.1753)
OT J0 For what type of variable does it make sense to construct a confidence interval about a population proportion? Choose the correct answer below. O.A. Qualitative with 3 or more possible outcomes OB. Discrete C. Continuous D. Qualitative with 2 possible outcomes E. Quantitative O F. Any variable Click to select your answer. O O O O
Q.4.1 Construct a 99% confidence interval for the true proportion of all employees ofPeople Plus Pty who believe that they should be given a raise by the company,given that 115 out of a sample of 135 employees support this suggestion.Interpret your answer.
Which of the following would be a correct interpretation of a 99% confidence interval such as 4.1 less than <muμ less than<5.6? Choose the correct answer below. A. It means that 99% of all data values are between 4.1 and 5.6. B. We are 99% confident that the interval from 4.1 to 5.6 actually does contain the true value of muμ. C. There is a 99% chance that muμ will fall between 4.1 and 5.6. D. It means that 99% of sample means fall between 4.1 and 5.6.

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