Mathematics, 19.09.2019 19:10 tay27831
Aarp reported on a study conducted to learn how long it takes individuals to prepare their federal income tax return (aarp bulletin, april 2008). the data contained in the microsoft excel online file below are consistent with the study results. these data provide the time in hours required for a sample of 40 individuals to complete their federal income tax returns. assume that the population standard deviation is known to be σ = 9 hours. open spreadsheet what is the 95% confidence interval estimate of the mean time it takes an individual to complete a federal income tax return (1 decimal)?
Answers: 1
Mathematics, 21.06.2019 16:00
The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.
Answers: 3
Mathematics, 21.06.2019 18:40
What is the value of the expression below? 148+(-6)| + |– 35= 7|
Answers: 2
Mathematics, 22.06.2019 02:00
Atriangle has vertices of (0,3.5), (3,1.5), (0, -1.5). if it is dilated with center at the origin, and a scale factor of 2, what will be the coordinates of the image?
Answers: 3
Mathematics, 22.06.2019 02:30
Amotorboat maintained a constant speed of 12 miles per hour relative to the water in going 45 miles upstream and then returning. the total time for the trip was 8.0 hours. use this information to find the speed of the current.
Answers: 1
Aarp reported on a study conducted to learn how long it takes individuals to prepare their federal i...
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