Mathematics, 28.11.2019 00:31 soliskb
Congress regulates corporate fuel economy and sets an annual gas mileage for cars. a company with a large fleet of cars hopes to meet the 2011 goal of 30.2mpg or better for their fleet of cars. to see if the goal is being met, they check the gasoline usage for 50 company trips chosen at random, finding a mean of 32.12mpg and a standard deviation of 4.83mpg. in this strong evidence that they have attained their fuel economy goal? a. define the parameter and state the hypotheses. b. define the sampling distribution (mean and standard deviation). c. perform the test and calculate p-value d. state your conclusion. e. explain what the p-value means in this context.
Answers: 3
Mathematics, 21.06.2019 16:00, yurimontoya759
12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?
Answers: 2
Mathematics, 22.06.2019 05:20, fifthward92
This trip the family will spend $117.96. the next trip they will spend $119.27. this is an increaseof $117.96 - $119.27| or an increase of $1.31.what is the percent of increase? round your answer to the nearest whole percent. type your answer into the space. the percent of increase is: resetsubmit
Answers: 1
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