Mathematics, 27.03.2020 03:26 mccdp55
Did Americans work less than 40 hours a week on average in 1973? In 1973, the GSS included questions about the number of hours that the respondent worked per week. A sample of 30 respondents was questioned. The average number of hours worked per week was 39.49 hours with a standard deviation of 14.86 hours. What is the test statistic? Group of answer choices -1.56 0.426 -0.19 -0.034
Answers: 1
Mathematics, 21.06.2019 17:30
How is the number of vertices for a prism related to the name of the prism
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Mathematics, 21.06.2019 23:00
Square a has a side length of (2x-7) and square b has a side length of (-4x+18). how much bigger is the perimeter of square b than square a?and show all work! you so
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Mathematics, 22.06.2019 02:30
Apossible wavelength for the color blue is 0.000000492 meter. which of the following is a reasonable estimate for this wavelength for the color blue? a. 5 × 10-6 m b. 5 × 107 m c. 5 × 10-7 m d. 5 × 106 m
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Mathematics, 22.06.2019 03:00
Let us imagine that the number of automobile accidents in a certain region are related to the regional number of registered automobiles in tens of thousands (b1), alcoholic beverage sales in $10,000 (b2), and decrease in the price of gasoline in cents (b3). furthermore, imagine that the regression formula has been calculated as: y = a + b1x1 + b2x2 + b3x3 where y = the number of automobile accidents, a = 7.5, b1 = 3.5, b2 = 4.5, and b3 = 2.5 calculate the expected number of automobile accidents for a football weekend if the region has 25,000 registered vehicles, $75,000 worth of beer is sold, and a gas war causes a 10 cent drop in a gallon of gas.
Answers: 3
Did Americans work less than 40 hours a week on average in 1973? In 1973, the GSS included questions...
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