Question 17Based on Tukey Multiple-Comparison Method, confidence interval for 4-, 1s.1.1.1.b)1.d)Ancwer

The confidence interval is used to get an interval in which the population parameter (unknown) is…

Answered: Based on Tukey Multiple-Comparison…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Chapter 8 1) Construct a 95% confidence interval estimate for the population mean given that s =30 , x = 45 and n= 20. 2) A random sample of 81 workers at a company showed that they work an average of 100 hours per month with a standard deviation of 27 hours. At 95% confidence, how many more workers need to be included in the sample to provide a confidence interval with length 4 (i.e., the margin of error being 2)? Chapter 9 3) Given the following null and alternative hypothesis test: Họ : µ > 210 НА: и 200 against the alternative hypothesis HA : µ < contents in the 0.01 level of significance, test 200. Can we conclude that the company's claim is justified?
find d) length of confidence interval and graph
Construct a 95% and 99% confidence interval of the age of adults with at most 3 vaccine shots. Compare the marginsof error for intervals. Base from your answers, make an inference in one or two sentences only.
Library Construct a 95% confidence interval to estimate the population mean with x = 110 and o = 28 for the following sample sizes. Accessit a)n = 33 b)n = 44 c)n = 66 Purchas Commu a) With 95% confidence, when n = 33, the population mean is between the lower limit of and the upper limit of (Round to two decimal places as needed.) Enter your answer in the edit fields and then click CheckK Answer. parts remaining Olear All Type here to search acer F2 F3 F4 F5 F6 F7 F8 Esc
You recently sent out a survey to determine if the percentage of adults who use social media has changed from 62%, which was the percentage of adults who used social media five years ago. Of the 2283 people who responded to survey, 1635 stated that they currently use social media.a) Use the data from this survey to construct a 94% confidence interval estimate of the proportion of adults who use social media. Record the result below in the form of (#,#)(#,#). Round your final answer to four decimal places.
To run post hoc tests using the Tukey HSD, you must first find the Studentized Range statistic that corresponds to your alpha and df. a) True b) False
The accompanying summary quantities resulted from a study in which x was the number of photocopy machines serviced during a routine service call and y was the total service time (min). n = 17 (y - y)² = 22,218.08(y-y)² = 2615.58 (a) What proportion of observed variation in total service time can be explained by a linear probabilistic relationship between total service time and the number of machines serviced? (Give the answer to three decimal places.) (b) Calculate the value of the estimated standard deviation se. (Give the answer to three decimal places.) What is the number of degrees of freedom associated with this estimate?
8 and 9
5. a). What is a fundamental difference between the t statistic and a z-score in terms of variability? b). What value is estimated with a confidence interval using the t statistic?
17. Confidence interval is for population parameter and prediction interval is for a variable . Select one: True of false
Use the given confidence interval to find the margin of error and the sample mean. (15.2,21.8) The sample mean is (Type an integer or a decimal.) The margin of error is | (Type an integer or a decimal.)
You recently sent out a survey to determine if the percentage of adults who use social media has: changed from SS%, which was the percentage of adults who used social media five years ago. Of the 2564 people who responded to survey, 1770 stated that they currently use social media. a) Use the data from this survey to construct a 98% confidence interval estimate of the proportioA of adults who use social media. Record the result below in the form of (#, #). Round your final answer to four decimal places. b) Can you conclude that the percentage of adults who use sdcial media has changed? Explain. O Yes, because the proportion of adults who used social media five years ago is inside of the confidence Interval. O Yes, because the proportion of adults who used soclal media five years ago İs not inside the confidence interval. O No, because the proportion of adults who used social media five years ago is inside the confidence interval. O No, because the proportion of adults who used social…

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Based on Tukey Multiple-Comparison Method, confidence interval for 4-4, 1S. 1. a) 11 b) 1. XS c) d)