A researcher compares two compounds (1 and 2) used in the manufacture of car tires that are designed to reduce braking distances for SUVS equipped with the tires.SUVS equipped with tires using compound 1 have a mean braking distance of 55 feet and a standard deviation of 14.0 feet. SUVS equipped with tires using compound 2have a mean braking distance of 58 feet and a standard deviation of 13.7 feet. Suppose that a sample of 81 braking tests are performed for each compound. Usingthese results, test the claim that the braking distance for SUVS equipped with tires using compound 1 is shorter than the braking distance when compound 2 is used.Let u, be the true mean braking distance corresponding to compound 1 and u, be the true mean braking distance corresponding to compound 2. Use the 0.05 level ofsignificance.Step 2 of 4: Compute the value of the test statistic. Round your answer to two decimal places.画 TablesE KeypadAnswerHow to enter your answerKeyboard ShortcutsPrevious Step AnswersSubmit AnswerO 2020 Hawkes LearningP Search for anything900 AM11/25/2020hp"brt sedeletehomePg upend%233.$442.56.89ObackspacenumlockQRTYUP78.homeDGKenter4pauseVB.Ntshiftendaltcaltctriin

Name: A researcher compares two compounds (1 and 2) used in the manufacture
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: A researcher compares two compounds (1 and 2) used in the manufacture of car tires that are designed to reduce braking distances for SUVS equipped with the tires.SUVS equipped with tires using compound 1 have a mean braking distance of 55 feet and a

The value of the test statistic is, t=x¯1-x¯2s12n1+s22n2=55-5814.0281+13.7281=-32.1764=-1.3784≈-1.38

Answered: Step 2 of 4: Compute the value of the…

Math

Statistics

Step 2 of 4: Compute the value of the test statistic. Round your answer to two decimal places.

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

Find the value of so that 92.3% of the data lies to the right of it.
A publisher reports that 78 % of their readers own a laptop. A marketing executive wants to test the claim that the percentage is actually different from the reported percentage. A random sample of 120 found that 71% of the readers owned a laptop. Find the value of the test statistic. Round your answer to two decimal places. Answer How to enter your answer (opens in new window) Tables Keypad Keyboard Shortcuts
Determine the test statistic, z0. and P-value.
how did you find the Z score?
Describe when you would use an independent samples t-test versus a dependent samplest-test.
I can't understand why the data is the percentage of surveyed parents.
Q6
A parent comes to you and asks the difference between percent correct and the national percentile rank on an achievement test. What do you tell the parent?
The CEO of a large electric utility claims that at least 80 percent of his one million customers are very satisfied with the service they receive. A local newspaper surveyed 300 customers randomly. 73 percent said they were very satisfied. The test statistic is (Round answer to two decimal places. Do not write 0.12 as .12.)
A jeep gets 53 highway miles per gallon. Howvever, an SUV believes gas mileage for their new line is much better. In order to test, they collect a random sample of 8 jeeps. The results of the 8 cars tested as as follows: 56, 51, 55, 54, 57, 48, 56, and 51. If you perform this test at a= .05 level, state the p-value and the conclusion of the test.
Carmen and Rosanna are two employees in an electronics store. The store manager has put an emphasis on increasing the number of applications for the store credit card. The manager randomly selected 24 weeks for each employee and recorded the number of completed applications for each week, which is provided in the samples below. Each employee completed 21 applications in one of the weeks selected. Use Excel to calculate each employee's z-score for completing 21 applications. Round your answers to two decimal places. Carmen Rosanna11 56 1115 613 185 1114 1416 521 208 1110 97 1416 1513 1310 619 2118 95 1817 310 126 1712 1214 419 1017 8
Please answer