![subject](/tpl/images/cats/mat.png)
Mathematics, 06.08.2019 23:20 dontcareanyonemo
Most individuals are aware of the fact that the average annual repair cost for an automobile depends on the age of the automobile. a researcher is interested in finding out whether the variance of the annual repair costs also increases with the age of the automobile. a sample of 26 automobiles 4 years old showed a sample standard deviation for annual repair costs of $120 and a sample of 23 automobiles 2 years old showed a sample standard deviation for annual repair costs of $100. let 4 year old automobiles be represented by population 1.state the null and alternative versions of the research hypothesis that the variance in annual repair costs is larger for the older automobiles.
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:10
Lorne subtracted 6x3 – 2x + 3 from –3x3 + 5x2 + 4x – 7. use the drop-down menus to identify the steps lorne used to find the difference.
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:30
20 only answer if 100% sure most high school-aged teens are very active. a. true b. false
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30
Find the pattern and use it to list the nth term in the sequence. 6, 12, 20, 30, 42, 56, the nth term of the sequence is
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:30
Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.
Answers: 1
You know the right answer?
Most individuals are aware of the fact that the average annual repair cost for an automobile depends...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.08.2020 14:01
![question](/tpl/images/cats/mat.png)
Mathematics, 03.08.2020 14:01
![question](/tpl/images/cats/biologiya.png)
Biology, 03.08.2020 14:01
![question](/tpl/images/cats/pravo.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.08.2020 14:01
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 03.08.2020 14:01
![question](/tpl/images/cats/mat.png)
Mathematics, 03.08.2020 14:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.08.2020 14:01
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.08.2020 14:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 03.08.2020 14:01