云< >RLLICHALLENGE6.2.2: Relating confidence intervals to hypothesis testing (one sample).ACTIVITY389226.2543846.qx3zqy7Jump to level 1An auto maker is interested in information about how long transmissions last. A sample of transmissions are runconstantly and the number of miles before the transmission fails is recorded. The auto maker claims that thetransmissions can run constantly for over 150,000 miles before failure. The results of the sample are given below.Miles (1000s of miles)Mean150.7Variance4.551Observations42Hypothesized Mean150df41t Stat2.17p = -2P(T<=t) one-tailt Critical one-tail0.0181.683P(T<=t) two-tail0.036-3231.t Critical two-tail2.02t = Ex: 1.234Confidence Level(95.0%) 0.665What condition is met for the use of a t-distribution? Pickn = Ex: 5x = Ex: 1.2Degrees of freedom = Ex: 5 Cs = Ex: 1.234C%3D1.2.3.CheckMacBook AirDDF3110F4F5F8LA2434.80

We have given that the information related to the confidence interval to hypothesis testing of one…

Answered: t Stat 2.17 p = -2 P(T<=t) one-tail…

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

1. A recent survey showed that from a sample of 500 packages delivered by a Postal Service, 480were delivered on time. a) Construct a 95% confidence interval for the proportion of all packages that are deliveredon time by the Postal Service.
wo groups of men, those dressed as Luke Skywalker and those dressed as storm troopers were measured for height in inches. Data in table below: Lukes Storm Troopers xbar=67 xbar = 70 n=14 n=11 sd = 1 sd = 3 Using this data, and the assumption that the population variances are equal, give a 90% confidence interval for mu (storm troopers) - mu (lukes) = μS - μL
A random sample of students at a college shows that 54 of 200 students had part-time jobs. Which of the follow-ing is the correct formula for a 90% confidence interval for the proportion of all students at this college withpart-time jobs?A) 0.27 { 1.28B10.27210.732200B) 0.27 { 1.28B10.5210.52200C) 0.27 { 1.645B10.27210.732200D) 0.27 { 1.645B10.5210.52200E) 0.27 { 1.96B10.27210.732200
A national opinion poll found that 44% of all American adults agree that parents should be given vouchers that can be applied toward their children's education at any public or private school of their choice. The result was based on a small sample. A)How large an SRS is required to obtain a margin of error of at most 0.03 in a 99% confidence interval? B) Answer the question in part A again but this time By using Phat=0.5. By how much do the two sample size differ?
a researcher was interested in comparing the amount of time watching television by women and by men. Independent simple random samples of 14 women and 17 men were selected, and each person was asked how many hours he or she had watched television during the previous week. the summary statistics are as follows. Women x1=12.7 hours s1=3.9 hours n1=14 hours Men x2=14.1 hours s2=5.2 hours n2=17 hours Construct a 99% confidence interval for u1-u2, the difference between the mean amount of time watching television for women and the mean amount of time spent watching television for men
The following are airborne times (in minutes) for 10 randomly selected flights from San Francisco to Washington Dulles airport. 269 255 267 285 274 275 266 258 271 281 (a) Compute a 90% confidence interval for the mean airborne time for flights from San Francisco to Washington Dulles. (Round your answers to three decimal places.) , Interpret a 90% confidence interval for the mean airborne time for flights from San Francisco to Washington Dulles. There is a 90% chance that the true difference in the mean airborne time for flights from San Francisco to Washington Dulles is directly in the middle of these two values.We are 90% confident that the mean airborne time for flights from San Francisco to Washington Dulles is between these two values. There is a 90% chance that the true mean airborne time for flights from Washington Dulles to San Francisco is directly in the middle of these two values.We are 90% confident that the true mean airborne time for…
Consider the following sample information randomly selected from two populations. Sample 1: n1 =250, X1=30 Sample 2: n2 =100, X2= 33 a.) Calculate a 95% confidence interval for the difference between the two population proportions.
From a simple random sample of 400 of the 1,395 colleges in our population, it was found that business statistics was a two-semester course in 141 of the sampled colleges. Estimate the proportion of all colleges for which the course is two semesters long, and find a 90% confidence interval.
Suppose that Randy is an analyst for the bicyling industry and wants to estimate the asking price of used entry-level road bikes advertised online in the southeastern part of the United States. He obtains a random sample of ?=10n=10 online advertisements of entry-level road bikes. He determines that the mean price for these 10 bikes is ?⎯⎯⎯=$659.87x¯=$659.87 and that the sample standard deviation is ?=$197.02s=$197.02. He uses this information to construct a 95% confidence interval for ?μ, the mean price of a used road bike. a) What is the lower limit of this confidence interval? Please give your answer to the nearest cent. b) What is the upper limit of this confidence interval? Please give your answer to the nearest cent.
Which of the following would result in a larger width for a confidence interval? A- use a larger sample B- select a smaller % confidence C- obtaining a sample with large variability D- none of the above
The final exam score was recorded for each Harper statistics student in a sample of 30. A 95% confidence interval for

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