Mathematics, 22.04.2021 22:20 tonimgreen17p6vqjq
While measuring specimens of nylon yarn taken from two spinning machines, it was found that 9 specimens from the first machine had a mean denier of 9.17 with a standard deviation of 1.81, while 12 specimens from the second machine had a mean denier of 7.33 with a standard deviation of 1.48. Test at the 0.05 level of significance that the mean denier of the first machine is higher than that of the second machine by at least 1.5.
Answers: 1
Mathematics, 22.06.2019 01:30
Andy has $310 in his account. each week, w, he withdraws $30 for his expenses. which expression could be used if he wanted to find out how much money he had left after 8 weeks?
Answers: 1
Mathematics, 22.06.2019 02:00
He trapezoid is composed of a rectangle and two triangles. what is the area of the rectangle? what is the total area of the triangles? what is the area of the trapezoid? ? a) 42 cm2; 27 cm2; 69 cm 2 b) 54 cm2; 27 cm2; 81 cm 2 c) 108 cm2; 27 cm2; 135 cm 2 d) 108 cm2; 13.5 cm2; 121.5 cm 2
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Mathematics, 22.06.2019 03:00
The seventh-grade students at charleston middle school are choosing one girl and one boy for student council. their choices for girls are michaela (m), candice (c), and raven (r), and for boys, neil (n), barney (b), and ted (t). the sample space for the combined selection is represented in the table. complete the table and the sentence beneath it.
Answers: 2
While measuring specimens of nylon yarn taken from two spinning machines, it was found that 9 specim...
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