Mathematics, 31.12.2019 07:31, hncriciacheichi
Ms. fitness-buff, a high school gym teacher, wants to propose an after-school fitness program. to get an idea of the fitness level of the students at her school, she takes a random sample of 75 students and records the number of hours the students exercised in the past week. her sample mean is 2.25 hours and she knows from past research that the population standard deviation is 2 hours. she wants to know if this varies from a population mean of 3 hours/week.
1 .construct a 95% confidence interval
2. draw a conclusion for a two-sided test at a = .05.
Answers: 3
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Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.
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Mathematics, 21.06.2019 20:00, cduke1919
The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212
Answers: 1
Mathematics, 22.06.2019 01:30, shrinu
Marion has a bicycle that she is planning to take for a ride. the rim of the rear wheel lies 41 cm from the center of the wheel. the tire itself has a thickness of 3 cm. in order for marion to ride her bicycle 96,712 cm approximately how many rotations will the rear wheel make?
Answers: 1
Ms. fitness-buff, a high school gym teacher, wants to propose an after-school fitness program. to ge...
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