Mathematics, 07.05.2021 05:40, Gearyjames8
The average amount of taxes paid by a family of four is greater than $4172. A random sample of 20
families found that an average of $4560 was paid in taxes with a standard deviation of $1590. At
a=0.10, is there evidence to support that families pay more than $4172?
For the conditions since 20 is not greater than 30 and I can’t do a dot plot what do I do?
Answers: 3
Mathematics, 21.06.2019 23:00, ronaldotheexplorer12
The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?
Answers: 3
Mathematics, 22.06.2019 01:10, 3peak101
Awavelength of 610 nm was found to be the most intense wavelength emitted by copper. answer the following questions about this wavelength of light. a) what is this wavelength in cm? b) what is the frequency that corresponds to this wavelength? c) what is the energy of light of this wavelength? d) what is the wavenumber corresponding to this wavelength?
Answers: 2
The average amount of taxes paid by a family of four is greater than $4172. A random sample of 20...
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