Mathematics, 31.07.2019 19:30 mazielynn84
Suppose a random sample of 90 companies taken in 2006 showed that 14 offered high-deductible health insurance plans to their workers. a separate random sample of 120 firms taken in 2007 showed that 30 offered high-deductible health insurance plans to their workers. based on the sample results, can you conclude that there is a higher proportion of companies offering high-deductible health insurance plans to their workers in 2007 than in 2006? conduct your hypothesis test at a level of significance alphaequals0.01.
Answers: 1
Mathematics, 21.06.2019 18:00
Solve this system of equations. 12x − 18y = 27 4x − 6y = 10
Answers: 1
Mathematics, 21.06.2019 23:30
Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3
Answers: 1
Mathematics, 22.06.2019 03:00
If bill bought a home for $210,000 and he sold it a year later for $120,000 his percentage of loss is
Answers: 2
Mathematics, 22.06.2019 03:20
Aconcession manager at yankee stadium wants to know how temperature affects beer sales. she took a sample of 10 games and recorded the number of beers sold and the temperature in the middle of the game. temperature 80 68 78 79 87 74 86 92 77 84 number of beers 20533 1439 13829 21286 30985 17187 30240 87596 9610 28742 a. draw a scatter plot of the data. b. the manager estimates the regression equation to be: numberofbeers = −100, 678 + 1, 513 ∗ temperature draw this on your scatter plot. c. for one of the estimated points, indicate the residual with ei . d. for that same point, indicate what part of the variation is explained by the model with ˆyi − y¯.
Answers: 2
Suppose a random sample of 90 companies taken in 2006 showed that 14 offered high-deductible health...
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