Mathematics, 19.10.2021 03:30 MarbleMonkey7907
You are in the market for a new car. You want to check whether there is a significant difference between the fuel economy of mid-size domestic cars and mid-size import cars. You sample 17 domestic car makes and find an average fuel economy of 30.552 MPG with a standard deviation of 5.218 MPG. For imports, you sample 16 cars and find an average MPG of 33.233 MPG with a standard deviation of 8.179. If a 99% confidence interval is calculated to estimate the difference between the average fuel economy of domestic and import mid-size cars, what is the margin of error
Answers: 3
Mathematics, 21.06.2019 18:30, genyjoannerubiera
Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8 feet of ribbon. he cut off one piece that was 3 5/8 feet long and another piece that was 1 1/4 feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.
Answers: 1
Mathematics, 21.06.2019 20:00, brittanybyers122
Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily
Answers: 2
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