Mathematics, 19.10.2019 06:30 kendasinjab
Amanufacturer of flashlight batteries took a sample of 13 batteries from a day’s production and used them continuously until they failed to work. the life lengths of the batteries, in hours, until they failed were: 342, 426, 317, 545, 264, 451, 1049, 631, 512, 266, 492, 562, and 298. at the .05 level of significance, is there evidence to suggest that the mean life length of the batteries produced by this manufacturer is more than 400 hours? a. yes, because the test value 1.257 is less than the critical value 1.782 b. no, because the test value 1.257 is greater than the critical value 1.115 c. no, because the p-value for this test is equal to .1164 d. yes, because the test value 1.257 is less than the critical value 2.179 reset selection
Answers: 2
Mathematics, 21.06.2019 22:00
Simplify (4x^2 - 8xy + 2y^2) - (9x^2 - 4xy - 7y^2) a. -5x^2 + 4xy + 9y^2 b. -5x^2 - 4xy + 9y^2 c. -5x^2 + 12xy + 4y^2 d. -5x^2 - 4xy - 5y^2
Answers: 1
Mathematics, 21.06.2019 22:30
Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell
Answers: 1
Mathematics, 22.06.2019 01:20
The domain of the following relation: r: {(3, 5), (8, 6), (2, 1), (8, 6)} is (1 point) no domain exists {1, 5, 6} {3, 8, 2, 8} {2, 3, 8}
Answers: 2
Mathematics, 22.06.2019 01:30
What is the solution for the following system of equations? use any method to solve. 2x + 8y = 4 x = -3y + 5 question 4 options: x = 14, y= -3 x = 2, y = -3 x = -3, y = -3 x = 12, y = 5
Answers: 1
Amanufacturer of flashlight batteries took a sample of 13 batteries from a day’s production and used...
Mathematics, 28.06.2019 09:30
Computers and Technology, 28.06.2019 09:30
Chemistry, 28.06.2019 09:30
History, 28.06.2019 09:30
Social Studies, 28.06.2019 09:30
Geography, 28.06.2019 09:30
Mathematics, 28.06.2019 09:30
Computers and Technology, 28.06.2019 09:30
Chemistry, 28.06.2019 09:30